I bet most wealthy people have inherited something (other than money) that played a significant part in their wealth-building ability: parents' social connections, a family business, a financially stable upbringing that allowed them to go to college or savings to live on when their initial ventures failed. So I doubt you'd find type-related results unless you control for socioeconomic background...and location. Getting rich in a small or poor country is not easy because there just isn't enough consumption, unless perhaps someone is selling a stable like food or housing.
But even then there'd probably be a lot of type scatter because different types go into different financial endeavors. The people who got rich as musicians likely have a different type distribution than those who got rich as entrepreneurs.