that is part of it  - the power and control.. we are in  agreement with that. for whatever reason..very, very often the creeps are driven by abuse that was heaped upon them by someone close to them - studies show that link - they become predators. young people are easy prey..they are easy to manipulate..especially for a man who has power over them.. that's the "grooming" part. 
 women are predators - no doubt. the proportion to men is relatively low.  the teacher/student thing is another animal - i would look at the women who injure children..especially little boys. these women have a different mix of ick than child rapists. we've read of a couple right here in the last few months. those women ALLEGEDLY (ha!) did terribly awful , painful, evil things to those little boys - directed at their genitals.   things that are soul- scarring and just the type of thing that grows adults into men who prey on children. it's a viscous circle. and so sad. like a kid who never got a break..