About 9 years ago I dated an audiologist for about 9 months. She moved to Aus because we have (had) a shortage of them.
She originated from Canada. Nice enough lady but she was somewhat eccentric.
Anyways... She worked hard and seemed happy with her job but wasn't getting paid a lot considering her qualifications.
One thing she did say that often people would come to her office very reluctant to use a hearing aid but once they did they wouldn't be without it.
It's a very technical job. She has to asses, select and adjust hearing aids specific to her clients and they're very expensive compared to any other electronic gadget.