One of the best programmers I have ever met/worked with had a degree in philosophy, having started in the computer industry before there was widespread adoption of it as a formal subject --- he is one of only two people I've ever met outside of TeX User's Group Conferences who had read TAoCP (and kept a well-thumbed set of the first 3 volumes on a shelf at his desk).

Really miss working with him, but he has since moved on to better things in his choice of locale.