Doctors spend up to 15-20 years in education and training. Some train for longer than they practice. In many instances, they make more money than 99% of the world's population.
So, given the time, emotional commitment, energy, income, and debt obligations, it is easy to understand the high opportunity costs of leaving clinical practice to pursue physician entrepreneurship. But, for too long, physicians have been disintermediated or ignored as critical parts of the sick-care innovation supply chain.