I’ll at least speak for me personally on this, but I think a lot of mods share my viewpoint.
Half of what I did on PMC before becoming a moderator was complain about PMC. You can check my profile, the [Rant] forum posts are still up, and that isn’t even including the hours I spent reporting recipe packs back when they cluttered the feed. The entire reason I became a mod to begin with is because I wanted to see PMC be better, and I find it unlikely any other mod could have an ulterior motive in that regard.
I can also add: we don’t enjoy “bullying children”, or anything in that vein. To be frank, the things that could reasonably be construed as “bullying children” are the worst parts of the job. I’m a mod because I want to see the site improve, and having the opportunity to personally play a part in that improvement is fulfilling.