Plenty is doing.
"M.R.Lee (1986, B.A. Thesis, University College Cork), using Cattell's 16PF, found seven of the sixteen personality factors to account for over thirty per cent of the variance in programming ability. The dominant personality characteristic [of successful programmers] was conscientiousness.... The successful programmer also tends to be assertive, independent-minded and individualistic."
Disclaimer: this quote appears here only to spark discussion. It is not endorsed one way or the other. Make up your own mind. Or just refresh the page for another viewpoint. From a collection assembled by the late Chris Brand.