Or possibly, he enjoys what he does, enjoys being his own boss, likes the challenges that the types of software he works on present, and values those things hig

Or possibly, he enjoys what he does, enjoys being his own boss, likes the challenges that the types of software he works on present, and values those things higher than going and shaving seconds off for some airline. If he is, his genius is more about finding a way of being happy than software, marketing, or anything else. I know HN tends to be all about the money at times, but seriously, it's not everything.