[sgt101]

For 2 I could imagine that intelligence makes you rich - and if heritable wealth would run in the family. But be clear, other factors are much more important in getting rich - aggression, ruthlessness, a lack of imagination.. and being positive; a strong family affinity, luck, hardwork, attention to detail. The ability to reason and learn is clearly very useful, but it's not exclusively useful in our society, and in the not very distant past it was not very useful at all to the vast majority of economic actors. For example - if you are a land owner in a preindustrial society the opportunities for scheming and thinking are far more limited than if you are a startup owner in the modern day.

Some would say.