> Loads of people become nurses and teachers because they want to help people, even though they don't get paid much

I know it's not the primary point of the post, but define "much". An RN makes around 80k on average, they're also hourly and can generally pick up overtime whenever they want. Nurse anesthetists make double that at minimum, practitioners are north of 120k. It may not be as much as a FAANG position but I'd consider that decent pay, especially for such a stable position with decent WLB(omitting pandemic). Up until the past few years RN only required a 2 year degree.

Teachers don't make as much, but average pay in my lower cost of living area, just crossed 60k. That's not terrible, especially considering they only work 9/12 months and can get more for summer school or many of them find side jobs.