I think specialization is making labor markets more exploitative. If the market expects you to do things that aren't worth the wage, but you spend a decade and

I think specialization is making labor markets more exploitative. If the market expects you to do things that aren't worth the wage, but you spend a decade and half a million dollars on training and switching to something comparable would take a ton more time and money, well, then you probably won't switch careers. And if too few people switch then there's little market pressure to adapt.