because they started businesses that do stuff
Well that is fundamentally wrong on its face. The people that own the highest valued companies didn't make shit. They bought or inherited it. (Obvious example being Elon Musk).
As for criticizing rentiers without any broader examination of the system the produces and enables rentiers is just trying to reapply Adam Smith to modern economics.
I'm not very smart but this all sounds very stupid.
fyi "Viet Cong" was a derogatory exonym for Vietnamese communists