Any society should aim to have the most educated population it can afford to have. Them getting a better earning through it can be a nice side effect of that, but it is a side effect. The main price is that living among educated people beats living among the dumb and uneducated, especially in a democracy.
The US would have no problem affording that education, if it just considered taxing the richest members of its society a reasonable amount, as it did in the past.
The US would have no problem affording that education, if it just considered taxing the richest members of its society a reasonable amount, as it did in the past.