Those same people are also part of the massive research system run and funded by the federal government. Most medical schools, especially the ones you listed,

Those same people are also part of the massive research system run and funded by the federal government. Most medical schools, especially the ones you listed, are incredibly dependent on NIH funding and they'd be unrecognizable without it. Without that support (funding, but also the review process and infrastructure stuff like PubMed and the NCBI tools), very little of the prize-winning work would be possible.