alt Hacker NewsI'd like to push back on "useless" degrees here, as well. The idea that degrees that leave graduates struggling to pay their bills (especially with student loans factored in) are worse than degrees that maximize income is bad for society. Not every job that is good for society pays well - if they did, educators would be better paid, and many executives would not be compensated as well as they are.
Some degrees are less in-demand (at time of graduation) economically, but a well-educated populace that can apply critical thinking and remember lessons from history, can be its own reward. Notably, pushing for a population completely lacking these skills is an excellent way to topple a democracy over time.
The pay is determined by supply and demand, apparently there is a relatively large supply of educators (many just enjoy it despite low pay) relative to the demand.
I see your point on broader benefits, however, those are largely speculative while a shortage of e.g. doctors has very direct and concrete costs to the society.
On prior point regarding spreading risks - would you say government should bail out failed entrepreneurs? Because that is very similar in principle (taking risk, benefit for society)