The main purpose of most genes in the human genome is regulating the expression of other genes in the genome. - Matt Ridley

The longer your generation time, the more genetic mixing you need to combat your parasites.

So there is no escape from determinism by appealing to socialization. Either effects have causes or they do not. If I’m timid because of something that happened to me when I was young, that event is no less deterministic than a gene for timidity. The greater mistake is not to equate determinism with genes, but to mistake determinism for inevitability.

It is hardly surprising to find that the males best at seduction tend to be the best at other things as well; it does not prove that females are seeking good genes for their offspring.