A high school graduate capable of getting a medical degree != a normal high school graduate. Further, doctors are an artificially constrained supply which vastly increases pay vs. other progressions. In many counties they make comparable salaries to US programmers which don't need collage degrees.
A Law degree from a 3rd rate school on the other hand is not so constrained and outside of 'top' schools which again are a limited supply tend to have minimal benefit.
