I imagine OP is talking about how we get to select our partners, not eugenics. And how, generally speaking, the wealthier and better looking a person is the wea

I imagine OP is talking about how we get to select our partners, not eugenics. And how, generally speaking, the wealthier and better looking a person is the wealthier and better looking their partner and then children will be. Edit, to add: the same is likely true for realized intelligence as well.