For whatever reason, I've always associated the acronym "RMS" with Stallman. (Even though I have no idea what the "M" in his name is.) I then immediately think of the famous "Stallman Jesus" photo.

In the '90s (or early 2000's?), I remember seeing a photo of Stallman Jesus on the left arrayed against Bill Gates on the right, with Stallman being the figurehead for the open-source coalition arrayed against the might of Microsoft. I've not been able to find that photo since though.