For what it's worth I am a doctor.
The other day I was considering how open source has created complex computing and financial structures that we might have previously thought needed big business.
Perhaps there is some way a blockchain reward based system could be used to crowdfund future medical research. Not sure how yet though.
Block chains could be used for mutual assistance savings schemes where members would vote on treatments covered in an efficient, representative way without having to reveal the identity of the individuals and their illnesses to others int the group.