I'm not so sure that Facebook is the best example. It's not clear whether its existence has made a positive mark on the world or a negative one.
Also, Linux was created in another socialized state, Finland. I would argue that the impact of Linux is at least an order of magnitude more profound than Facebook.
"On 30 April 1993, CERN announced that the World Wide Web would be free to anyone, with no fees due.[24] Coming two months after the announcement that the server implementation of the Gopher protocol was no longer free to use, this produced a rapid shift away from Gopher and towards the Web. "
Nor am I disagreeing. Only pointing out that Linux was also created based on preceding ideas like Unix, MINIX, etc., themselves based on even earlier ideas ... just like HTML comes out of SGML, and has its own long history.
Also, Linux was created in another socialized state, Finland. I would argue that the impact of Linux is at least an order of magnitude more profound than Facebook.