Wealth accumulation roughly follows the process of "1. Earn money 2. Don't spend it" - It doesn't strain credulity that IQ might be correlated with the former, but not the latter.

I'm curious as to the effect on quality of life - measuring wealth in dollars is easier, but a pretty imprecise measure of the overall effect on someone's life of a few IQ points.

I'm even more curious as to the effects on happiness...

Edit: Not much, apparently: http://www.quora.com/Happiness/Is-it-true-that-less-intellig...