It's not tough to know good ethics, but is sometimes tougher to stand up to superiors when you should. One of our cases involved Officers "encouraged" to write up something on a guy. Later on, I was asked about an interaction with the fireguy written up. My case involved nothing out of bounds, and I stated factually that the member acted appropriately. Then I was told to do that proverbial thing, "write me a Memo on that". I wrote and submitted it. The Chief Officer (now retired) reviewed it, saying it didn't "say" what he hoped to see. I said "Sir, it says what I told you, which was a factual account. And I'm sure the Chief is not asking me to write anything that wasn't factual?". He gave me that look while I was shaking in my boots, but trying to look at ease, haha. But twenty more years down the road, and I haven't been asked to play that game!
Best possible advice, is to take the good examples left by the moving away dude, and demonstrate it yourself. We need more mentors than dissenters anyway.