Health and codes are much like any business. The talent wants to maintain their edge. Many health companies, universities and even non profits find value in holding onto what they create. I understand we want everyone to be healthy but it will never work that way. So much cost and competition is involved that it will never be a "free" open source world. I would bet if Bill Gates and Warren Buffett each put 5 billion dollars toward find a cure or sharing code and paying creators there would be more people willing to share. Try asking Coca Cola for their secret recipe. Oh and tell them you won't pay them and will be using this recipe to make your own sodas to compete against them. I believe you will be waiting a long time for them to call with the info.