On the other hand, being admin on a system is not that different. Sure, you don't have users' passwords, but you can still do arbitrary stuff in their name. Very large organizations will have some sort of system that logs this stuff and that you can't tamper with, but in a lot of places you could easily cover your tracks.
I would argue that having passwords made up by users and having access to a user's work account is a little different. In the former case, I see what kind of password they use and can guess that they reuse the password (or a variant) elsewhere. I can also take knowledge if I get fired, but my admin permissions are revoked.
