Fun fact about "donating" blood, at least in the US, is that the blood donation companies turn around and sell it to the hospitals to make money lmaooo.
Same thing with being an organ donor. If you die in a car crash, they will take your heart and use it for a heart transplant. They will bill the recipient an average of $1.3 million dollers for the operation. Not only does your next of kin not get a cut, but they will bill your estate for the costs of their failed attempts to save your life.
They bill $1.3 million for your heart and they won't even comp the ambulance ride.
I'm sure they do this because it's illegal to profit from the sale of organs. You wouldn't want your wife to sign you up as an organ donor than off you to collect on that sweet organ cash.
As far as charge you for the ambulance ride... capitalism strikes again. Wouldn't be an issue if we had single payer.