To understand why there’s no-one in the administrative mid-tier of the FBI acting in a whistle-blowing capacity requires a background perspective looking at the totality of corruption.  The institutions are protecting themselves; and yes, that protection applies to the internal dynamics.
Former DAG Rod Rosenstein was dirty.  He might not have started out dirty, but his actions in office created a dirty mess.  Rosenstein facilitated the McCabe operation against Trump during the May 16th, 2017, White House FBI sting against Trump with Mueller.  Rosenstein also facilitated the special counsel (writ large), and provided three scope memos to expand the corrupt investigation of President Trump.  According to the inaction of AG Bill Barr, we’re not allowed to see those authorizing scope memos.

Additionally, despite knowing the Trump investigation held a false predicate, Rosenstein signed the 3rd renewal of a fraudulent FISA application.  Worse yet, even if Rosenstein was caught up by corruption around him, he did nothing to stop the fraud once identified.
Why is Rosenstein a key inflection point?  Because Rod Rosenstein recommended current FBI Director Christopher Wray to President Trump.  POTUS then allowed Wray, as he does all department heads, to select his deputy – Wray chose David Bowditch.
♦Keep in mind the National Security Division of the DOJ (DOJ-NSD) was/is the epicenter of many corrupt activities, including filing the fraudulent FISA application, manipulating interpretations of law for FARA (§901) violations, and doing all of this while denying any inspector general oversight. As FISA Judge Rosemary Collyer recently noted, the DOJ-NSD is positioned as a rogue legal arm of the U.S. intelligence apparatus.

FBI Director Wray selected the former head of DOJ-NSD to become the lead lawyer for the FBI, chief legal counsel Dana Boente.
So from Rosenstein we got: Chris Wray, David Bowditch, Dana Boente and another dubious DOJ recommendation, DC U.S. Attorney Jessie K Liu (ref. Awan Bros and James Wolfe).  Keep this in mind moving forward.
Another career corrupt-o-crat to come out of the DOJ-NSD, who was also involved in the fraudulent legal filings was the lead lawyer for the division, Michael Atkinson.
Atkinson was moved from DOJ-NSD to become the Intelligence Community Inspector General (ICIG).  Yes, the same IGIC who manipulated the rules and regulations to allow the hearsay Ukraine CIA “whistleblower”, Eric Ciaramella.
What we end up with is a brutally obvious, convoluted, network of corrupt officials; each carrying an independent reason to cover their institutional asses… each individual interest forms a collective fraudulent scheme inside the machinery of the FBI apparatus.
The motive behind the DOJ/FBI effort to cover for Senate Intelligence Committee Security Director James Wolfe’s unlawful classified information leaks, is connected to this network and expands into the SSCI Chairman (Richard Burr) and Vice-Chair Mark Warner.
Security Director Wolfe was working on instructions from inside the committee itself; his leak of the FISA application to journalist Ali Watkins was in alignment with the intents/motives of the SSCI in March 2017.   Dirty politicians corrupting staff.
The DOJ and FBI didn’t charge James Wolfe with the leaking of classified information because it would have exposed corruption within the SSCI.  Wolfe was prepared to call the senators in his defense…. this could not be allowed.  The SSCI has oversight over the intelligence community to include the FBI, DOJ, DOJ-NSD, CIA, ODNI etc.
How does all of this corruption come together?….  More importantly how does this level of institutional corruption create the inability of FBI whistle-blowers to come forward?
♦ The Senate Select Committee on Intelligence is the approver for any nominations for any executive appointed position involving the intelligence community.
If the senate intel committee wants to block the nomination, likely adverse to their interests, they can… simply, they don’t take it up. (See Trump’s attempt to appoint Representative John Ratcliffe as ODNI as an example.)
However, along with approving Wray and Bowditch, the SSCI also approved former DOJ-NSD legal counsel Michael Atkinson to become Intelligence Community Inspector General.  Who would an honest intelligence whistle-blower have to go through?  Dirty Michael Atkinson.
The same dirty Michael Atkinson who was the top legal counsel to the head of the DOJ-NSD when the corrupt DOJ-NSD agency operations were ongoing. See how the whistle-blower block works?
Aligned interests – The Senate Intel Committee uses the placement of Atkinson to block any whistle-blower action that would be adverse to their interests.  Whistle-blowers ain’t stupid, they know what surrounds them.
Senator Mark Warner and Senator Richard Burr are dirty.  So too is ICIG Atkinson, FBI Director Chris Wray, FBI Deputy Director David Bowditch and FBI Legal Counsel Dana Boente.
♦ Robert Mueller was dirty.  Rod Rosenstein was dirty.  All of the special counsel lawyers including Andrew Weissmann and Brandon Van Grack (Flynn prosecutor) are dirty.  Additionally Mueller’s lead FBI Agent David Archey, who was promoted after the corrupt special counsel investigation to be the head of the Virginia FBI field office, dirty.
FBI official David Archey, like ICIG Michael Atkinson, conveniently put into a place where he can run cover for FBI operations that might expose dirty DC and Virgina-based FBI activities.  See how that works?
Try telling me with all we know about the Mueller investigation how anyone on the special counsel assignment was participating in a fraudulent investigation without knowing.
Special Agent Peter Strzok, dirty.  FBI lawyer Kevin Clinesmith, dirty.  FBI Lawyer Lisa Page, dirty.  FBI media spox Michael Kortan, dirty.  James Comey, Andrew McCabe and James Baker, dirty-dirty-dirty.  Fortunately all of these are fired… but what about Supervisory Special Agent Joseph Pientka (SSA1)?  Pientka clearly outlined as dirty by IG Horowitz report on FISA abuse, and yet still employed; still providing cover.
So what exactly does that make Horowitz?  Perhaps lead corruption polisher who comes in willfully blind behind the Bondo application team?
That, all of that, in its brutal totality, is why we have not seen any honest FBI whistle-blowers come forward.
There’s no-one for them to blow the whistle to…
Every day we spend outraged about what the DOJ and FBI did in 2016 and 2017, is one less day that AG Bill Barr is not being held accountable for all of this current DOJ and FBI corruption that stares him in the face when he brushes his teeth each morning.
If we had a functioning Fourth Estate none of these corrupt officials could survive investigative media scrutiny.  Unfortunately the corrupt administrative state doesn’t *play* the press, it actually involves the press…. it absorbs the press… it attaches the press viability to its own position…. it makes the press part of the corrupt process.
The press cannot turn against the corrupt administrative state without exposing their own culpability, participation and lack of credibility…… It’s a protective circle.