The ecconomics of helth care are important. Perhaps if the insurance companies and the health trusts were run as public companies for the good of the nation, rather than as profit making organisations, then the ecconomics would make more sense. But that would probably be described as socialism by some.

In the German system, the main insurance providers aren't publicly held, but they are nonprofits and get a reasonable amount of oversight. That seems to be sufficient to remove the worst incentives for bad behavior on the part of insurers.