Do you really think it was never the norm for rich men to have affairs? That's a very optimistic view of history, I wish I shared it.
I think it's more accurate to raise an eyebrow at the idea of powerful people not habitually having affairs (historically, most of which have been men in modern times).
Because power is an ability to do what one wants, and a lot of people want sex.
The person I responded to said "men," not "rich men." You're arguing a point that neither of us are arguing.