Each person needs a task to feel that they are contributing to their group.

Key word here is "feel." Will having the low IQ people dig ditches and fill them back in be a more efficient use of resources than just paying them enough to survive? Employing people to do unproductive things will actually cost us more in bureaucracy and overhead costs than just mailing checks. And of course there will still likely be volunteer work they can do on their own initiative. job guarantee program is actually more closely aligned with what the post-Keynesian globalist want for the future.