She got a job working in a corporate office for a big company. This is pretty typical of not-retail-worker-salary beating out public sector nine times out of ten.
Why would someone ever be a teacher for <50k? Anybody with an education background can move to Seattle, Washington (or other state close to big city pay) and be a corporate trainer and move up to a director level role and get paid many times what they would ever be paid as a teacher…
…except so many want to stay near family, not be near a big city, can’t move because of xyz, want a couple months off each year… etc etc etc.
To quote somebody: Schools should be palaces. The competition for the best teachers should be fierce. They should be making six-figure salaries. Schools should be incredibly expensive for government and absolutely free of charge to its citizens, just like national defense.
Just isn’t that way today and there is a big political and economic mess in the way of getting there.