It should also produce better health outcomes for the people living there. Maybe you have a well-paid job and good insurance plan, and can enjoy good healthcare now, but that is not the case for many others and can change for you if you are unlucky.
Even a very poor country like Cuba has higher life expectancy than the US. Most developed countries have better health outcomes than the US, while spending way way less on healthcare.
There may be deeper causes for this beyond the privatized healthcare system in the US, such as the legalized political corruption (lobbying, PAC's) and litigation law leading to huge overhead costs in everything. These will be even harder to change.