I can only speak for myself. Unlike most people, I don’t “work” at all, in the sense of doing anything with the conscious goal of making money. All I do is think about what interests me, and discuss the results of that thinking with other people. As long as governments (and philanthropists like Mike Lazaridis) are willing to pay me for my non-work, I’m happy to take their money. If they ever stop paying me, I guess I’ll have to find some other source of income.
I’d guess a sizeable fraction of LWers are interested in things other than those with the largest markets, though.
And here I quote this for the n-th time...
-- Scott Aaronson