[md2be]

This guy has one shot at learning medicine, his residency. If he wants run a trivial startup, so be it. But his first responsibility, at this time, in his training, (no he is not really a doctor yet) including his residence and fellowship.

[PeterisP]

His first responsibility is to whatever he wants to make with his life, not neccessarily his training. If he wants to run a medical startup that you call trivial, it's just as good (if not better) way to go as focusing on his residence and fellowship.

The default career directions for anyone, including medical residents, are just that - simply defaults, not some oath or moral obligation to follow that exact career choice 'till death do us part'.