Generally speaking, you can go by what minimum wage is, which is well under $10/hour in most states (Hawaii it's $7.25, just checked). Not sure how $10 an hour would be taking advantage of anyone... Why would I pay someone what I make hourly as a doctor to stand in line for me. That's just... ridiculous.
Wow, they must pay doctors crap where you live. Most that I know where I live make a minimum of $250,000 a year, with those in specialty fields over $500,000 a year.