A big part of that is getting the basics right. Diabetics don't need to start gofundmes to afford insulin, they don't get into medical emergencies if they run low on funds, then get swamped with medical debt from having to be hospitalized (further digging their insulin fund hole). they can live healthy and productive lives.
Are there numbers for this? As an American I have enjoyed great health care on-demand all my life at very little or no expense and I pay very little for insurance.
Some of that is explained by efficient outcomes not really being a systematic goal, but we also have a dumb regulatory framework where a bunch of things are highly regulated and prices aren't touched.
Healthcare is massively overrated.
Working in the medical field as an internal medicine physician, I'd say that focused and good-quality healthcare is vital to prolongation of life, and poorly derived, financially-motivated 'medicine as profit' is massively overrated.