[belorn]

The sexual-marketplace is not good advice on how to behave, but there is aspects of truth to acknowledge that humans are somewhat similar to tournament species where a smaller percentage of men have children compared to women. The semi-accurate 20/80 means that social status has a very direct impact on the probability that a man has children, and a sad aspect of human culture is the tendency for men to be rewarded with social status for cultural correct aggression.

But we are also somewhat similar to pair bonding species. I would not describe it as an outlier or unusual, but rather two different biological strategies that is expressed through genes and culture. Researchers has even found some specific genes that is linked to predicting it, and women and men who has more of the pair-bonding associated genes have longer and happier relationships.

Being aware of both strategies and knowing there is a biological aspect to it is useful information, but strictly following one is foolish. We are human with human brains so individuals will behave uniquely even if there is a bias when averaged over a population.