IME it seems to be ‘rich’ men who cheat on their wives. They have money and spare time for extra ‘fun’ and seem to become more arrogant and entitled the better off they are. By rich, I mean well above average salary, senior jobs, or own businesses which require them to work late, business travel etc.
Do less well off men have affairs? I’ve not known any. Would a woman be attracted to an affair with someone on minimum wage who drives an old car and who was living month to month?