Financial wealth and intelligence are also uncorrelated,

I wouldn't be surprised, because nobody gives you money because you are smart. You have to make a sustained, focused effort to create things of value in order to obtain wealth.

Intelligence without drive is like a car with a powerful engine but no wheels. One of the smartest guys I've known worked as a janitor and never had any money - while being smart, he just never stuck with something long enough to make it pay off.