One major problem that Obama wants to solve here is the damage that is caused by medical bankruptcies. It is not the case that there's a heavenly father paying all the unpaid bills caused by the very expensive emergency treatment that becomes necessary because they can't afford a much cheaper and healthier treatment earlier.
Americans are already paying for these costs, and it's ridiculous to give somebody who is about to die a $200,000 treatment when you could have avoided that by giving him a $50,000 treatment much earlier.