I think that sort of goes hand-in-hand. "Normal", well-rounded people don't decide that software licensing is the most important thing in the world and don't devote their entire life to that. A normal person would be content with a 9-to-5 software engineering job at Sun, IBM, or Microsoft.

I think you see that with a lot of other revolutionaries. They often take unreasonable positions and behave in unreasonable ways. RMS' tragedy is probably that his side more or less won, so now he's just a weirdo without a cause.

This puts me in mind of the words of George Bernard Shaw:

‘The reasonable man adapts himself to the world; the unreasonable man persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man.'