how's Bezos going to fund his wedding if there's no population of proles buying from Amazon, nor anyone putting their retirement into a fund that buys Amazon stock? does he just plan to use force rather than money at this point?
We've got a horribly K-shaped economy even before AGI.
there will be new economy around satisfying super rich and few layers of their servants. You can think about shifting production and distribution to more luxury cars/clothes/jets etc for them.
Bezos and Andreesen won't live alone on planet, there still be population, just much smaller.