Rich men are not the only men who go carousing on their wives. Men are by nature polygamous; women monogamous. It is a societal construct and contractual within marriage that men should “settle down” and be “faithful.” It is counter-intuitive.
I think the stats show women cheat just as much, if not more than men.
http://www.womensinfidelity.com/
Unless he’s pulling a “McGreevey”, for every cheating man there’s a cheating woman. And women are just as capable of doing the “McGreevey” as men ... so that works both ways, too.