Well, again that’s true of most situations but there are exceptions...being a nurse, I can tell you I get ZERO favors and I’m IN healthcare...
and promotions?
What’s that?
Who says anything about favors? I know many nurses who, on their own, improve their situations, starting from LVNs, going to school in the evening to become RNs or other practitioner specialties. I have an aunt who started as an LVN and over years or hard work, started her own sourcing business for nurses and is very well off now. No one is holding you back, as long as you don't look for favors.