Do men have any leverage in relationships who aren't rich or extremely attractive?

I know this guy I work with whom is very fit, he is good looking, nice career and mentions he is faithful to his wife and also mentions that despite his wife who is decent to ok looking, (doesn't work out and is older) and shows him a bunch of messages from other men she receives and how she apologized to him for entertaining a guy just by being friendly and messaging everyday until he told her to stop that.. he is the good looking one, younger partner, more successful and faithful one (as far as I know) and he receives absolutely no messages or inquiries from the opposite sex, yet he does. How does that happen? I mean, unless a man is rich or looks like a model, does he have any leverage at all in a relationship? It seems like even she could replace him faster than he could.. Am I wrong? Thoughts on this one..

Do men have any leverage in relationships who aren't rich or extremely attractive?
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