George S. Ledyard
But now I am a member of a third and as yet undiscussed group... budo professionals whose spouses have a "real" income.
Reminds me of an old joke from my days in a rock band:
Q: What do you call a drummer with no girlfriend?
But seriously, in response to Giancarlo, I'd disagree that there is an inherent conflict of interest between making money and being a serious martial artist. I do think that it can be a delicate line to walk though.