I have been staff on exactly one game, and let me tell you, it was a thankless, thankless job. In fact, becoming staff led to a friend I actually really liked and cared about going off and ending that (though to be fair she seems to blow up and flake out a lot, evidenced here, so in retrospect I don't think that situation is what I thought it was at the time).
It led to a bunch of frustrations, as within any staff there are cliques, and woe betide the person who raises an objection. That led to a culture of people afraid to speak up because they would be sacrificing the work they had put into the game. In that game, if you stepped down from staff, your PCs ceased to matter, and you'd be in the negative, forever, any time it came to staff decisions.
Which is not to say I didn't have fun, of course I did. Some of the fun was even related to BEING staff. I enjoyed the things I was allowed to write/GM by myself. I enjoyed my war mission even though it killed the first PC of the season and I felt awful about THAT.
But I think people are way more judgmental of staff than they are players, disproportionately so. Maybe there are games where being staff means you get your way more often than not. That was the case for a few people, but they were the exception. Even then, I do not think most of them were purposefully trying to exploit their staff positions to 'win'. Not consciously. People are not as bad as momentary interactions can paint them to be, and I think we all know that, but it's hard to let go of a time you felt you were in the right and didn't get your way.
I have a pretty mixed rep due to that staffing, but it doesn't bother me. For instance, one player said I was the most terrible PERSON playing the game, and because of me she wouldn't even RP her character in my clan. I was that terrible. This person also said that my staffbit was a total darling because I did a tiny bit of research into her and tailored her part in a little one-off plot to give her a reward she loved. . .not realizing we were the same person.
Staffing is hard. Benefit of the doubt is the order of the day. Wall of text, here, sorry.