Leave it up to the hospital. They are best equipped to assess the cost and likelihood of being able to save the person. They also are most responsible for the repercussions in terms of positive/negative publicity and reputation.
As for the rest, the doctors, nurses, and paramedics are now going to be required to do something that's against their training and likely their nature, by letting people die on the sidewalk out front. Do you suppose this policy will be workable in the long run?
Basically, if you're poor, you will get a public defender. Someone who is overworked, underpaid and probably won't give your case the appropriate time it needs to develop a valid defense..
Whereas if you have money, you can afford an attorney that can spend the appropriate time to create a robust defense.