That's a fundamental contradiction. Every rigorous academic study of the subject has shown that immunization and other preventive medical care that we provide to keep people healthy and to capture disease early on actually does cost more money in the short run. Better quality costs more and everybody knows this everywhere else in the economy. Part of the problem is that the U.S. hasn't decided whether health care is a public or private good. It's not part of the general public discourse.
People are very confused.
People don't believe that the government owes them a better house. Maybe the government owes them Section 8 housing, but the government doesn't owe them a suburban mansion. In health care, however, we've turned it around and believe that the government not only owes us Section 8 housing, it owes us a mansion in the suburbs. I'm not surprised at this confusion because for the Medicare and Medicaid population the federal government has made a promise. Whether that promise is being delivered efficiently is a whole different subject, but the promise is there for some but not for most.