I'm wary of using biology to explain it. I think a lot of bad behaviour is excused by this recent 'evolutionary Determinism' movement and I am not convinced by their arguments. We are human beings - to what extent can biology be used as an excuse for immoral behaviour?
It's certainly sociological. Biologically I'm less convinced. Some human cultures have women seen as the insatiable sex... I think the explanation that men are all hard wired to be cheats is a bit lazy and flawed.
I was talking about this with my husband today - more on the privacy side of things actually. We were debating the ethics of the hack. He was saying he was torn between a sense of 'serves them bloody right, the cheating gits' and uneasiness that so much personal detail was released.
While I have little sympathy for the AM users, I am uneasy about recent large scale hacks. What if medical records got hacked because say anti abortion protestors wanted to out women who'd had abortions?
Massive can of worms... Lots to think about.