Do you have the numbers to back these claims? Is the extravagant money spend on healthcare in US actually drives everything ahead? Do countries like UK, Germany, Switzerland and Japan lag behind due to the smaller amounts spent?
As to your first question, I don't have an answer for you off hand.
edit: Hmm, if that's true then US must be actually behind because every now and then the UK or some Europeans might invent something but the Americans won't have it because they respect intellectual property. Which means Americans will have only American stuff but the Brits and the EU will have Europeans stuff too.
- The US pays more for new drugs than the rest of the world
- The US contribution is disproportionate, and is major driver of the drug development industry.
-If the US paid less for new drugs, the entire industry would slow, and we would have fewer more effective treatments.