It's actually already spread to you. They call them "Federal Grants" ... but basically they just get a cut of your paycheck to develop the drugs the turn around and sell to you at 10,000% markup.
When you are forced to fund the private companies, it ain't capitalism anymore.
Think about this. Suppose that there is an illness that affects 100, 1000, 10,000, 100,000 people. At what point does a company decide that it is not in its economic self-interest to develop a drug that combats a disease that only affects x number of people?
Wouldn't that be where "Federal Grants" are necessary?
More generally, (pick your discipline), government has to step in and fund or help fund R&D precisely because it is not focused on the profit motive.