I actually attribute success of free software & linux to RMS. IMO he deserves a lot more credit than he gets for his work on gcc/egcs. it is foundational that we have access to a compiler that can produce user created executable otherwise entire software industry would look very different. the likes of MS & Apple would have us wrapped up in licencing agreements & TOSes to stifle innovation at a basic choke-point. if anyone has any doubts you only need to look at the ecosystem for opensource h/w design.
I think he's credited with it fine, he's always mentioned as one of the if not the founding father of open source (albeit with less emphasis on the license debacles).