You are right. But to play devil's advocate: what if very high intelligence individuals are not more likely to do science, mathematics or engineering?
For a very rough approximation: if I remember well, SAT averages for Harvard/Yale/Princeton (more likely to be doctor/lawyer/executive) are very similar to (or even higher than?) scores for MIT/Caltech/Stanford (more likely to be scientist/engineer).
So, could it be that it's not the high intelligence by itself that has said dampening effect on one's earning potential, but it's more about interests of the individual?
Possible, but it doesn't sit right with me intuitively. And since I don't care enough about the issue to spend time collecting data to refute your premise, we have to leave it at that. :)
For a very rough approximation: if I remember well, SAT averages for Harvard/Yale/Princeton (more likely to be doctor/lawyer/executive) are very similar to (or even higher than?) scores for MIT/Caltech/Stanford (more likely to be scientist/engineer).
So, could it be that it's not the high intelligence by itself that has said dampening effect on one's earning potential, but it's more about interests of the individual?