[glenra]

The usual story about IQ is that men have a higher variance, not a higher average. If those with an IQ above, say, 130 are much more likely to be men, then it shouldn't be surprising that careers which select for intelligence tend to also select for maleness. What makes this consistent with the story in the chart is that men are greatly overrepresented among both geniuses (who raise the average) and morons (who lower the average).