I'm out of the game long enough that there has been some sea change...but the currents and tides were already in play.
It's dangerous to use terms like all or always...things are rarely so straight lined and linear, but the course is recognizable for those with working eyes and a sense of navigation.
To greater or lesser degree, all LE agencies are fiefdoms, and those at the top generally like "yes men" who cause little trouble, and go along to get along. No different than in most things, I suppose.
Then in the 90's, the creeping menace of political correctness began to raise its head. You couldn't say this...or that. You had to refer to certain things and / or people in certain ways. You had to address one another in certain ways.
Where the group or squad room was once a hardhat area due to no holds barred ball busting, now employees were encouraged to report on one another to administrators and IA if something upset them, or they overheard something they found offensive. Your co-workers were now targets and trust was a dying concept.
(I was the subject of an IA investigation for saying something to another agent privately that someone else, not a party to the conversation, took exception to and felt that they had the right to feel offended over. It was quashed, but the handwriting was on the wall.)
An early supervisor didn't want me to be on our special response team for no other reason than pretending it would interfere with my normal investigative work, and to show he was the boss. He was overturned and I was on the team for some years thereafter.
Fast forward a few years and when a partner of mine and I came back to the office after dealing with a subject of investigation, the SAC, (who was portrayed in the movie "The Infiltrator"), and her deputy, asked us, "why the guy wasn't brought in bloodied up". I said, "And you'd have our backs if we had, right?" To which the response was "crickets".
The guys who fucked up and moved up over the years of my federal career were numerous. The guys who were good competent agents and also meat eaters were looked upon as pariahs that had to be managed and shunted aside.
Not always. But trends rarely lie.
What I saw in the late 90's and which caused me to remark to my wife that I was going to get out at the earliest opportunity some years later, and prompted me to buy a home in NC while still living and working in FL, has only proven to me that I was right all along.
I'm sure there are exceptions. But the LE folks I respect on this forum have shown me the truth of that foreshadowing.
(That said, I thank the gods that we still have men and women willing to put it all on the line every day...come what may. I only played a small role, but I was proud to play my part.)