You mean how he invented democracy, electricity, the internet, the worldwide web, air travel, artificial satellites, and cars?
Oh wait, he invented none of those things.
I'd say his greatest achievement is GCC, which is a pretty awesome piece of software, but to claim he invented anyone's world is laughable.
emacs, GCC, gdb, earlier GNU software were written by RMS.
He gave meaning to the term free software and propagated use of free software and free hardware. His ideas on using non-free Java, Flash, TiVo and DRM put those issues on centerstage.
If we see GPL being used so widely his dedication cannot be ignored at all.
Just like Steve Jobs didn't write all code of Apple or Next (FYI: He wrote none) but still he is "creator" it current Apple, similarly RMS is a chief figure of free and copyleft software.