Class B is a different species. If they stop working, their money will still go up, indefinitely due to passive investments. The idea of getting to $0 is ridiculous because they get richer every day by doing nothing. Class B’s lifestyle is totally different than Class A.
Class A people like to invent all these other sub-classes to distance themselves from others in Class A: middle class. Upper middle class. Lower middle class. Middle upper middle class. It’s all pretty silly. We all have much more in common with each other than we do with people who get richer every day simply by existing.