Didn't get a chance to reply to Law2Doc in the other thread (away on interview with very slow internet access), but here are some relevant links:
1. Atul Gawande (MD, Harvard MS, surgeon, Rhodes (?) Scholar, New Yorker writer + "Complications" author), on physician salaries:
http://www.newyorker.com/fact/content/articles/050404fa_fact
2. The study he cites by Dr. William Weeks (Prof at Dartmouth), that examines salaries of physicians vis-a-vis other professional careers (lawyers, dentists, business school people)
http://www.vaoutcomes.org/papers/Ed_Costs_and_Incomes.pdf
In short, if you calculate all the costs, and control (as best he could given his data sources) for GPA, family practice docs are more poorly compensated than lawyers, dentists, businesspeople, and specialty docs. The order of the remaining fields fluctuates depending on what measure of career income you choose.
One assumption I question is that a 3.x GPA med school matriculant is equivalent to a 3.x GPA law school matriculant. I'm not convinced of that assumption. Also, I tend to think that many more people can go to medical school, if they are willing to put in the work and effort necessary, than can go to a top law or business program. The graduates from the top law or business programs can make big bucks even starting out, no question. But anyone who gets into med school will make a tighter range of income, with a much higher floor (and a lower ceiling), as someone else mentioned.
Also mentioned in Gawande's article is the fact that a doctor has the option to say,"Screw the insurance system!", only take patients who will pay cash, and make a lot more than they would get in insurance reimbursements, without the billing overhead. So even though average doctor salaries are a certain amount, doctors do have the option to make much more... if that is what they want to do.
a_t