Why not get good and cheap qualified doctors?

Many students from my country learned Medicine in foreign countries because it is cheaper than in my country. They are not allowed to practice in my country due to opposition from rich licensed doctors. it is like a club. Some of them qualified even tough American exams. If they are tested and allowed to work in USA it will be better than sitting unemployed in my country. I suspect there are more such unemployed doctors available in other third world countries. It may even prod their government to allow them to work. What do you think of this?