I think DrunkNumber2 is right.
Not every powerful person is a creep but being powerful means it’s easier to get away with being a creep, so some people seek power out power in order to get away with it and some do it when they realize they can.
It’s usually men because sadly there aren’t that women in positions of power…

A bat-kkake!

I still don’t know who the BTK killer is or what those letters even stand for (I can take a wild guess at what the K might be).