[onion2k]

People need to be given incentives to become more productive and that's the only right path in the world's prosperity.

I don't think that's even remotely true, because even if the financial incentive is removed that doesn't mean there's no incentive. Rich people still do productive things.

The incentive doesn't have to be money. Incentives such as of respect, good will, or fame could work just as well as money as a way of motivating people. Once society is productive enough that the cost of goods is essentially zero we'll find other ways of proving status to one another.