Dumont was a prolific Brazilian-French inventor. Among his most famous achievements are several lighter-than-air flights and flying machines (blimps), as well as a potential claim as the inventor of the first airplane.
Yes. That Stallman is arguably one of the top few people why we have the internet as it is, at all today.
Most other people could be "replaced". If it wasn't X, it would be Y. But only Stallman pushed the copyleft license onto Linux. Only Stallman's organization popularized it.
So yes, that sexist, neurodivergent, bigoted Stallman, is one of the most positively influential people of our time.
Sure.But if someone wants to say "X has done the most good because they fed 1 million people" but you don't mention that X also killed 900,000 people, you're being disingenuous. No, I'm not saying Stallman is a mass murderer. But normalizing pedophilia is a gross counterbalance to whatever good work he's done.