Sure but you can make such an argument about every single medical issue. People can drop dead in a few days due to an unexpectedly aggressive toe infection. At some point we need to compare risks to costs.

There will always be a trade-off between quality and cost. If you accept nothing less than highest quality (enforced by law and an extremely litigious society), then you get the US hyper-inflation of healthcare prices.

Also in the US, I think ambulances typically only have EMT's and paramedics. Though sometimes it can cost as much as the ER itself.