Go back to the ethics of a Henry Ford mentality...

Henry Ford put together factories and wanted to pay the workers enough so they could afford the cars that were being produced. Now days these bastard rich "entrepreneurs" of today want to make cars using robots and to hell with anyone else on the planet? My question is who is going to buy the cars when they perfect the robots? When robots take over all work and all forms of money disappears what will people such as Jeff Bezos and Elon Musk do to get ahead then? I guess robots will drive the cars and buy the shit on Amazon. The idea of work is not the problem so much as the greed and selfish goals of Wall Street and the riches it generates.

We know socialism does not work because it offers no incentive to contribute anything to society. If we have socialism people will just try to sit home and play video games. But the games will get old and outdated and there will be no internet before too long since these things require human effort to keep them going and updated. The uber rich are the problem and it is not going to change easily I am afraid. Plus people will have to go out and farm or run a ranch or some such just to have something to eat since butchers and farm workers will be playing video games.

What am I missing here how will everything work without going back to the cave man mentality of each person for themselves? Any great ideas?