I think the better analogy here would be to tidy the public park for free. It's about doing something for other people, being generous, making the world better with your genrousity. I think that in itself is something worthwile to try.
Just because we’ve spent he last 30 years running Linux and not worrying about the nonsense in the wider computer world doesn’t mean we’ll be able to do the same for he next 30 years
The era of the hacker, the ethos of free software, it’s mostly over. In the 80s and 90s people could get jobs and write software on the side, Just for fun.
Today it’s all about side hustles.