Maybe I'm just weird, but I love my wife and wouldn't cheat on her, even if a nation state tried to craft some kind of "ideal woman." It's a bit alarming so many people on this thread are treating it like a foregone conclusion that all men are doomed to cheat on their wives if given the right hair color and conversation topics.
It's not a forgone conclusion, but from a defensive perspective the threat model is more sophisticated than you're assuming.
Well to be fair, you haven't been put in that situation so it's hard to say how you would act. I'm sure many people who have affairs believed, 3 months prior, that they would never be the type to have an affair.