I think the relationship between IQ and effort is due to two factors upbringing and our understanding of the self. The upbringing factor is easy to see; a smarter child doesn't work as hard growing up since he isn't challenged enough in school. You went into this in your article.
The understanding of the self however is a little more tricky. The more we understand what makes us happy on the inside, the more the value of the world on the outside decreases. You mentioned becoming a CEO; I think a person with a high IQ who has a good understanding of him/herself has a pretty good idea what he/her wants. And there is a very little chance that the "CEO" position can offer all or most of that. Jobs and positions in the real world rarely translate perfectly to what we want in our minds. Also, smarter people do a better job of synthesizing their future in their minds; they tend to look farther into the future. So essentially they are looking at the future wondering, why do I have to work harder to get to a position that offers very little of what I want.
You can argue that the CEO position is really quite valuable and that the smarter person should want it. But a side effect of their "easier" upbringing also means that they don't have the desire to work hard for things.
I think the biggest part of working hard is to trick your brain into thinking you want the outcome that the hard work is going to bring.
The understanding of the self however is a little more tricky. The more we understand what makes us happy on the inside, the more the value of the world on the outside decreases. You mentioned becoming a CEO; I think a person with a high IQ who has a good understanding of him/herself has a pretty good idea what he/her wants. And there is a very little chance that the "CEO" position can offer all or most of that. Jobs and positions in the real world rarely translate perfectly to what we want in our minds. Also, smarter people do a better job of synthesizing their future in their minds; they tend to look farther into the future. So essentially they are looking at the future wondering, why do I have to work harder to get to a position that offers very little of what I want.
You can argue that the CEO position is really quite valuable and that the smarter person should want it. But a side effect of their "easier" upbringing also means that they don't have the desire to work hard for things.
I think the biggest part of working hard is to trick your brain into thinking you want the outcome that the hard work is going to bring.