Types A and B map reasonably well onto today’s culture wars, with A the modern/liberal and B the traditional/conservative. It maps well to the rich-poor axis from the World Value Survey. But in fact, type A vs. B are actually foragers vs. farmers. [The above summarizes many books and articles I've read over the last year.] Which is my point: I think a lot of today’s political disputes come down to a conflict between farmer and forager ways, with forager ways slowly and steadily winning out since the industrial revolution. It seems we acted like farmers when farming required that, but when richer we feel we can afford to revert to more natural-feeling forager ways. The main exceptions, like school and workplace domination and ranking, are required to generate industry-level wealth. We live a farmer lifestyle when poor, but prefer to buy a forager lifestyle when rich.

From a 2010 post by Robin Hanson. Click through to read the descriptions of Type A and Type B people.

From a later post by Hanson on the same topic:

Farming required huge behavior changes, mostly unnatural to foragers. A key enabler seems to have been increased self-control to follow social norms. But what allowed this increased self-control?
One source was moving from vague spirituality to religions with powerful and morally-outraged gods who punish norm violators. In addition (as I’ll explain tomorrow), high densities and larger social networks made stronger credible threats to ostracize folks for specific deviant acts. Yes both these mechanisms require the fear that norm violations could lead to great harm, even death. But for poor farmers living on edge, such threats were easy to come by.
Interestingly, this death-threat pressure could work even without farmers being conscious of the relevant threats or fears. In fact, farming society probably worked better with homo hypocritus farmers, consciously denying that strong social pressures pushed them to do what would otherwise feel unnatural.
A large robust literature makes it clear that inducing people to unconsciously think about death pushes them to more strongly obey and defend cultural norms, especially norms framed as disgust at animal-like behavior. Today, fear of death encourages folks to obey authorities, and be more loyal to their communities and spouses, all strong farmer norms.

Count me among the foragers, though until reading these posts I'd never call it that. Thanks Mom and Dad for giving me the chance to live like a forager, I am blessed.

The farmer-forager dichotomy is like some variant of the Myers Briggs personality test.