> I think that you'll find all four types in most societies, and that which quadrant people fall into depends more on their own personality than the beliefs prevalent in their society.

Personality is a real topic of psychology research, the current model is a five-factor model https://en.wikipedia.org/wiki/Big_Five_personality_traits

But the distributions are not bi-modal, so in reality most people are near the center of this quadrant with (I assume normally distributed) outliers.