> Health care is a huge sector of the economy, comprising close to 18% of US GDP This is why health care is hard to change. 1/5th of the economy is in the curr

> Health care is a huge sector of the economy, comprising close to 18% of US GDP This is why health care is hard to change. 1/5th of the economy is in the current system. Systems that big are going to be hard and slow to change - some inertia, some corruption. The revenue of "McKesson Corporation" (one of the highest in healthcare) is single-handedly(!) 1% of US GDP. Imagine how much power those guys have. They must have shaped the entire country (laws, regulations, public opinion) to an extent with that big a share.