Because we're talking about patronage systems here, profit isn't strictly necessary - you just have to be able to attract patrons; and patrons have to be especially valued by society (gain status) for sponsoring artists with even small followings. (Although government patronage might have to be part of the transition to such a scheme.) Then more older folk artists could be included, but I think this will do more to address future unemployment than present unemployment. I'd settle for that, it seems an ambitious at that.