Incentive to live is different from incentive to work. Look at open source; look at researchers in universities. Wealth is not the motivator there, yet there's tremendous productivity coming from that.
The meaning of wealth is going to have to change.
Incentive to live is the primary but not only incentive to work. Wealth is what you need when you're trying to survive, only after that's achieved do other incentives matters.
> The meaning of wealth is going to have to change.
No, wealth is wealth, it's just stuff, that's not going to change. You need stuff to survive, food, shelter, etc, that's not ever going to change.
What's going to change is how wealth is distributed, that's where the conversation is.