I'm an open source developer. To me, it tracks that people can have other motivations and balance those with money/survival and all. What nikkwong is saying is, you can want to do well, have social obligations, take action to serve the community and not just your own benefit, and even want to do so because you sleep better and have nicer interactions with people as a rule. That tracks, I believe it, that's what I do.
The critics here are trying to make the argument that no you can't. Any such motivation is completely pretend, and everybody is 100% always dedicated to only their own benefit, not taking any of these squishier benefits into account ever, and you're fooling yourself if you think otherwise and you're conning other people on purpose if you PRETEND otherwise. There is nothing but paperclip maximizing, and we're all robots but some of us are lying robots.
These critics exist, and I'm sure they live their beliefs. Sucks to be them, even when they include the literal wealthiest people in the world, because they live those beliefs. They're inflicting them on the rest of us, but it doesn't make them correct, it just means the rest of us have to deal with the harm they inflict. Cheers nikkwong, thanks for being more of a gray area, like a lot of us are :)