In my personal opinion, I feel it's just sexual urges taking over as a general thing.
I feel like accusations of power trip for instance seem like the victim and those outside of the situation looking at what happened trying to give a reason for what just happened instead of realizing that "it happened for no significant reason". An idea like this can be applied to a lot of behaviors, notably with those who believe conspiracy theories. Seemingly in our nature we tend to like to place significance on horrifying events, and a significant event surely needs a significant trigger. But in the end, some events, not all, just... Happen.
Psychology isn't my strong area of study. However, I personally prefer simple solutions to problems.