Imagine a future, even an unlikely one, wherein a significant body of the populous derives revenue for being human subjects for this or that scientific thesis.
Or perhaps that could be accomplished with a social credit system, by which point social credit could effectively serve as a sort of communistic credential. Over a certain rate, you get these amount of resources for free. And how to you sustain this credit, by adhering to the social guidelines, which may have some kind of democratic establishment.
Anyway I think the only futures in which wider numbers of people have a significant amount of free time, are also the futures in which each person learns to live in more conscientious and less parochial ways.