Ok, I'm back. I'll try to find more supporting evidence.
http://www1.udel.edu/educ/gottfredson/reprints/health.pdf
I'm not the only one to speculate inequalities in Intelligence could account for social inequalities. General intelligence as measured in this paper points towards overall better outcomes for people with higher measured intelligence. These outcomes include health, wealth and overall happiness. Let's focus on a broader idea of intelligence though as this would more accurately predict outcomes.
Intelligence or g is a measure of human capital and therefore potential economic capital.
https://mh19870410.files.wordpress.com/2013/09/intelligence-education-and-economic-growth-a-bayesian-averaging-of-classical-estimates-bace-approach-jones-schneider-2006.pdf
I would say personality type matters as well. However I have yet to find literature regarding it's impact on economy.