Personally, I feel sorry for those who are ignorant of the commandment to abstain from blood and become sick with a blood-borne illness. Refusing a transfusion is no guarantee that one's life will be spared, either.

There are many people who are not aware of the law regarding blood. We should show those people compassion, not feel morally superior to them. No one "deserves" a terrible disease like HIV, Hep C, etc.