This may sound strange to you, but I kind of think that men failing to attract women (and giving up trying to attract them as a result of despair maybe) makes them way less ambitious. Being attractive to women is some very strong but overlooked motivation for men to better themselves. Maybe they think something like "I don't think I have any chance, so I won't even try. I will do the bare minimum for me to survive and that's it." (I am talking about heterosexual men here.)

What do you think about this idea?