I would surmise that a great deal of this is biological, but a radical gender theorist would likely rebut that these differences are due to social conditioning. He would say that men/males are conditioned to take more risk, conditioned to desire working with _things_, and conditioned to desire prestige in their jobs.
How would one go about designing a study that eliminates the variable of social conditioning when trying to study sociological differences between the sexes, or is that even important to indicate these sentiments are/aren't linked to biology?