Women are disloyal which is why they have only a few close friends, but many acquaintances. Men form loyalty networks instead, of less deep but more flexible relations.

Aside from differences in bias between experiential and algorithmic, this difference in loyalty vs harmony causes the various differences in occupational achievement.

As risk increases so does the risk of defection, and men do not defect under disharmony where women will defect at the first sign of it.