No.
One should definitely complete high school and college. A Masters, PhD, MD, or Law Degree is just icing on the cake. Try finding a good paying job without an education. Its not just about the knowledge, these days you can learn anything at any level through the internet. It is also about social skills, discussions, different points of view, etc. School is also a place to find girls and get laid. It is also a place where you find out your strong and weak points and how you stack up against your peers.