Hats off to Richard Stallman.
Whatever your views on software—and by default most people will disagree with him on many points—his contributions to the software world are undeniable. There are a lot of fundamentalists out there, and 99% of the time they scare the shit out of me because of what their unchecked advocacy could ultimately lead to. Stallman's fundamentalism on the other hand, does not seem likely to ever lead to any detrimental effect on society.
In other words, it's not just about respecting Stallman's conviction, but also acknowledging that his convictions are well-placed, even though my lifestyle would never allow me to share his position per se.