It seems like entrepreneurship is what you are really excited about, but medicine appeals more to your altruistic self. Clearly, you should go for entrepreneur

It seems like entrepreneurship is what you are really excited about, but medicine appeals more to your altruistic self. Clearly, you should go for entrepreneurship - also there are going to be ample opportunities in entrepreneurship to truly help people - possibly have a bigger impact then you might have by studying medicine which will take care of your altruistic leanings.