It seems that way, when compared to other professions:
William Weeks, a Dartmouth professor, has done a number of studies on the work life of physicians. He found that, if you view the expense of going to college and professional school as an investment, the payoff is somewhat poorer in medicine than in other professions. Tracking the fortunes of graduates of medical schools, law schools, and business schools with comparable entering grade-point averages, Weeks found that the annual rate of return by the time they reach middle age is 16% per year in primary care medicine and 18% in surgery. That compares with 23% for law and 26% for business.
