I'm not really planning to be Bill Gates's lawyer here but let me just suggest three things:
*The overall economic benefit from the post-1980 computerization revolution is nearly incalculable, everything you touch traces back to the fact that people who are not brilliant Harvard-educated computer scientists are able to use computers to interface with things like global supply chains, instantaneous communication with no marginal cost, digital distribution of entertainment products, and so on. What Gates and to an extent Jobs and everyone else whose businesses are oriented towards providing products that the average consumer and employee can use understand, and Stallman refuses to accept because it makes him so much less special, is that inventing something that you have to be Stallman to comprehend is almost insignificant in its social impact compared to inventing the middleman products (Windows and Office) that allow seven billion people to actually make use of that UNIX server backend that you need a degree to approach. Because this is a website where a lot of people are oriented more like Stallman than like businesspeople it's easy to overlook that having the big vision on how to actually shepherd society through something as huge as the transition to using computers for everything, and the ability to actually see it through, is way more rare and valuable than being able to code.
*I stand by my point that it's relevant that Richard Stallman is a screeching autistic baby who literally is on video sitting on the floor and crying over someone interrupting his speech, because his only modes are "literally forget that We Live In A Society and start stripping off my clothes while singing pirate shanties about text editors" and "be so terrified of human interaction that I have to white-knuckle my way through a 60 minute talk I've rote-memorized while completely dissociating from my surroundings" with no in-between whatsoever. His entire fucking job is to convince people that he's right about free software. He is a salesman trying to change people's minds about what products to use. The fact that he's this terrible at human interaction despite insisting on filling that role is why he's an ultimate cow and why he doesn't have any useful allies in his current situation.
*I guarantee that Bill Gates has a favorite kind of red wine, an opinion on who is going to win the NBA Finals this year, and a lot of stories about amusing things his kids did, and if you had to sit through a baseball game with either him or Stallman and you weren't interested in hearing about open source and the Green Party, your choice would be extremely easy. If Gates is a "sociopath" then it just means you're choosing the much more bearable of two mentally ill people.