I think the most strong argument against the whole thing based on "human nature" is to find an incentive for people to actually perform in jobs that aren't exactly very rewarding or creative.
That's still making the same mistake about human nature. One of the most important aspects of human nature is that everybody has different needs and desires.not everyone is covetous of others' good and greedy enough to try to acquire them at all expenses, and not everyone resents doing mindless repetitive work. Enlightened self-interest is not a single, scientifically measurable and competently engineerable entity.
Even in a post-scarcity society there will be someone who figures out how to exploit the system for personal gain above and beyond the needs of comfort and security, and they will put that plan into action and become king of the hill. Whatever post-scarcity economic system (economics == equitable system for the distribution of scarce resources) you can develop, it will need a series of checks and balances to prevent such exploits, and the checks and balances will need to be the easy path.