But Zuckerberg hoarding 100s of billions of dollars of wealth far less productively than say a family in poverty on food stamps would slows the velocity of money and also keeps that money out of the broader economy.

Production of the staples of middle class life, like homes in decent neighborhoods and seats in decent schools, is limited more by the use of middle class political power to restrict it than by a lack of capital or demand. More money for consumption might help with already-cheap consumer goods, but it only drives inflation in the core class markers.