I think contributing to the public good by sharing onerous labor is what William James called for, the moral equivalent of war. If the sense of we're-all-in-this-together can send people into frenzies of militaristic flag waving and -- in the old days of war, at least -- genuine sacrifice, I would think people in general would willingly do dirty, boring work part of their time if there was a uniform obligation to do so and a clear perception that this effort made for a better world.
Carl
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