IMHO women do tend to look for intelligent, caring, creative (good fathers) when they want to get pregnant... they go for the handsome idiots when they're not planning it. Same for men with marriage but to a lesser degree maybe. Also, if a population has instincts to do something that no longer fit their environment (sex with good looking jocks/models made sense in the stone age maybe) then eventually that instinct will evolve into what's good for the survival of the species. Right?