Don't forget healthcare isn't about you, it is about society and if you don't care about society just think of it instead as having healthy employees and customers, who aren't ruined if they fall ill, and therefore have cash to spend...
https://en.m.wikipedia.org/wiki/List_of_countries_by_total_h...
>you pump unsustainable amounts of money into the service over time. This allows you to offer a great service until in the future you can't pump enough money into it anymore.
This is how every growth based juggernaut business works as well. Quality of service always goes down to continue growth of profits, especially after you've crushed the competition.
IMO, healthcare of the public should not be a profitable business. Or the business will always find ways to squeeze their customers who simply need care for the health.
Here's how you do it: you pump unsustainable amounts of money into the service over time. This allows you to offer a great service until in the future you can't pump enough money into it anymore. But that's a problem for the future generations. Those future generations were funding the previous generations all the while, but won't get the same benefits themselves.
An ever increasing percentage of GDP is being poured into the UK's NHS. At some point it's going to be too costly and the young generation at that time will have to pay for it, but won't get the same level of service themselves when they're older. They will be the ones left holding the bag.
I don't think there's a politically viable solution to this though. The problem with this model is that you're effectively borrowing from future generations, but the system takes so long to reach actual unsustainability that people will grow up with the feeling that the system is great.