Licensing requirements are a way of limiting competition to keep up prices; so doctors have a vested interest in reducing supply. Why do they fight letting NP's practice independently? Or foreign doctors jump through hopes to get a US license? Yes, there are some second rate foreign med schools but a lot of really good ones so you could vary the requirements.
Unfortunately for lawyers it's easier and cheaper to start a law school than a medical school.
It's all about the money. As an engineer, I wish the profession had required a PE before you could work as an engineer. That would have greatly reduced competition and drive up salaries. I always found it odd I could change a piece of equipment at a nuclear plant with the stroke of a pen, or work on aircraft design, without a PE, but my barber needed a license.
Yea, our GP once told us his friends who went to B-School instead of Med school not only made a lot more but had a lot less overhead. He enjoyed being an MD and helping people but he had a middle class lifestyle, and a ton of debt.
Not only that, but at first they's tell you "curves are good," then "no, flat as a board;" not to mention a fertility specialist telling you "You're holding it wrong.."
