macuahuitlgog: Yes, women aren't innocent angels but women don't have dicks. It is easier for women to get laid. I think a sociopath man in power is more tempted towards rape than a sociopath woman in power.
I don't profess to be an expert on the psychology of rape, but the refrain of many who claim to be such (whether they actually are or not is an undetermined matter) is that rape is rarely about sex (unless you're talking about date rape) and more about brutalizing and humiliation, i.e. a power thing.
Again, I'm not entirely sure that's correct. It is a fact that violent rape has gone down since the advent of the internet (and thus free porn), and while that could be entirely correlation and not causal, other forms of sex and violent crime have decreased as well. I'm not sure what to think about it, I just know that not all would agree that rape is about the dude needing to get off.
Also, many prisoners in Abu Ghraib were violated by objects (I recall a truncheon being one, forget the rest). You don't need a penis to do that.