What an arrogant comment.
Nursing is one of the most physically and mentally demanding jobs I know of, at least in Germany.
And I bet 80% of the Techbros here wouldn't last a month in it, given how many lost their minds over a simple RTO-Mandate.
Maybe watch the movie "Late Shift" to get an idea of how a Workday is https://m.youtube.com/watch?v=C7o-omvW_DI
I doubt that "directionless" people would put up with those working conditions, and many leave the sector after a few years, simply because they burn out. Nearly no one works 100% long-term, just because it's too much too.
Perhaps unlike Germany, in the US, people in those positions will not be able to come close to earning what they earn if they leave. Probably only half at best. A medical cert doesn't translate to much else besides the cert.
So like you mentioned, it's very difficult and grueling work, and people (in the US at least) get trapped because of the money. Passionless souls doing something they hate because they'll lose their upscale home and Mercedes if they quit.