There is no obvious reason other than tradition and cultural goals that a lawyer has to be paid $200/hr instead of $20/hr, ditto no reason a postdoc biomedical researcher has to be paid $30K/yr instead of $300K/yr. The supply of STEM grads is too high leading to low pay and the supply of lawyers is too low leading to high pay, but if you can convince the kids to select different majors, go ahead.

We live in a central govt controlled economy. If you have control of the government, which we probably don't, then you can also select the priorities.

It also has the assumption that profit is the only reason why people work. Simple salary arrangements work pretty well for most people, as does contract work. Some other ways people make money without profit include prizes (Nobel, etc) and being cultural heros (pro sports athletes, unfortunately definitely not biomedical research scientists)

Finally some people just love the subject area and will voluntarily starve their family, look at any STEM other than CS/IT/high level applied medical (aka hospital dr cardiologist etc). I would not bet on it, or demand that only people taking a vow of poverty are "real" scientists or whatever. But there always will be some nuts willing to eat Ramen every night for the rest of their lives.