Elites also have a better understanding of the strategy for becoming and staying elite and they will teach their children to go on that path. Get education, save wealth, put it into owning businesses and screwing people over as needed on the way there.
Capitalism was not abolished over those years. Landlordism largely was, but otherwise there were just one-time corrective measures and some systems put into place to regulate the extremes. The underlying capitalist system developed in place and the corrective measures became less heavy-handed.
New race science just dropped