I think it is just the nature of the sinful human beast, always will be. We all struggle with self control, especially when our fleshly desires are enabled through power and lack of accountability. The bible says that when we sin, we can only blame ourselves because its our desire that lured us away, but that a fruit of the Holy Spirit is self-control (this doesn't mean you have to be Christian to have self control). For most of history, in most places it is males in power, so they are the common abusers. But I have no doubt, as we see from "teachers having sex with students" thread, that women also fall as well when in power. It's why in the bible God has to give us commands to do things that are contrary to our natural tendencies: love God, love your neighbor, do good, be gentle, faithful, seek the welfare of others before yourself etc.If only more people followed that who claim they do, but don't.