I would be pretty proud of a company that could take people from various backgrounds and education levels, make them productive, and enable them to earn a good living. Same goes for a city.
You would prefer we segregate people into cities based on some measure of worth? No thanks.
What do you have in mind? The stanford elites get to live in san francisco, and the less-elite get shipped elsewhere?
I'd say if "building a city where anyone can live" is the highest goal, that's an issue in and of itself.
Would you want to work for a company "where anyone could work?"