Any amount can still be a constant amount and still equal for all.
The point IS that the notion of everyone in the world needing to work is outdated. Automation is getting better and better and will mean that there are not enough jobs for everyone in the world to have one. It already is that way. People are doing meaningless jobs right now just to give people something to do.
The ultimate success of society is to not have the need for humans to do any work. Obviously we're not completely there, but we're in the first stages of that.
People that want to work, and are actually doing meaningful stuff can still work and get income on top of what is just needed to survive so they can live better than just surviving. But no one should have to worry about just staying alive.