People suggest going into dentistry "for the money," as opposed to medicine because you can run your practice as a business. In medicine, the insurance companies tell you what your services are worth. Very, very doctors practice with a no-insurance, cash-only policy. So it's only natural that if you love healthcare, as well as money and business, medicine is probably a poor match. The closest field that could satisfy both of your interests would probably be dentistry.
I think a common misconception with pre-meds is that every dentist, even the first year out of school, is making $150,000. I'm sure plenty of fresh grads do make this, but I've heard even more are making slightly less than $100,000 as an employee. I'd say first-year earnings of any doctor, even a family medicine doctor, is going to be greater than an associate dentist. However, that family medicine doctor's income will also probably remain more static over the years, or perhaps dip due to the uncertain future of healthcare in the US. Dentistry, due to the business aspect, seems to give one a much higher practical ceiling (or none at all).