Calicogirl - you're believing in something that simply isn't true.
My first wife is a nurse, and I can assure you they are not badly paid. Granted they may need to do a bit of overtime or agency work (but hours wise no more than I do, and I'm unpaid for extra hours) but don't believe for a minute they're on the breadline.
I remember my first wife working an agency shift on Xmas day night, on the ward she normally worked on, and she was being paid about £50 an hour. Oh, by the way, this was in the early 2000s.