I've read a few times that IQ has no bearing on income (even though you'd think it would).
Very smart people, who remember things easily, tend to sometimes work not all that hard. Just like dumb people. Myself, I was one of the brightest kids in the MBA program - always smelling every opportunity, always finding solutions faster, always remembering the lists, yet I didn't read much. I just listened in class, and anything I hear once I can recall later without problem.
Of course, I was a brokeass most of my adult life until the last 4 years, so I am guessing that quick wit and photographic memory didn't help me all that much til then. Come to think of it, I was broke til I started posting on getbig and suddenly I'm doing worlds better. you fuckers must be a good influence!