"A man who isn't getting sex from his wife will look for it somewhere else."
Right, society used to be so much more honest. By this I mean, women were expected to have sex with their husbands. This was part of the marital agreement, and women were expected to keep it.
Now, a woman can totally disregard that part of the bargain yet still bitch when the man goes elsewhere. It is considered offensive if the man even mentions the problem.
I heard one man say he was told on his honeymoon night "we are married, I don't have to do that anymore." Another man told me all sex stops after his wife got pregnant with their first child. He had not had sex since and the child at the time was 15 years old. When he mentioned this during the divorce, the judge was infuriated.