I think its very hard to integrate blockchain in to healthcare industry. Most hospital groups follow and like the old way of working. Most people in the healthcare dont like changes.
Every big accomplishment starts from small steps. If you never try it then you never know it. So, it could be tough but not impossible. I think eventually you got to see whether thing makes the difference or not. If they make even 1% difference to the world and contributes to betterment, I think they should be called successful. I for one will certainly want to join in!