[RHSeeger]

No matter how good a person you start out as, when you enter an environment where

- A large percentage of the people are already bad

- Anyone who pushes back against bad behavior is shunned, fired, or left "without backup" in bad situations

- There are no repercussions for bad behavior

- There are positive reinforcements for bad behavior

Eventually, you're either going to be driven out, or you're going to turn. So wiping the place clean and starting from scratch, while drastic (and _certainly not appropriate everywhere) can be a valid approach when the problem is rampant across the entire department.