[skookumchuck]

> I think it's because intelligence doesn't help when it comes to earning money.

What evidence is there of that?

> The luck and social component is so strong that there is very little incentive for people to be intelligent.

People tend to make their own luck. For example, if you sit home and watch TV 6 hours a day, you are highly unlikely to get lucky. If you're out swinging the bat, you're far more likely to get a hit.

[jodrellblank]

Lucky if you're a person with the drive and motivation to go out swinging the bat.

[skookumchuck]

Drive and motivation is a choice, not luck.