The allocation of scarce resources, such as HLA platelets, involves a conflict between the medical ethics principles of beneficence and social justice.
AMA J Ethics. 2016;18(8):764-770. doi:
10.1001/journalofethics.2016.18.8.ecas1-1608.
Although organ donation conflicts with self-interest, because donation is vital to the community, interventions to increase it are ethically justified.
AMA J Ethics. 2016;18(2):156-162. doi:
10.1001/journalofethics.2017.18.2.msoc1-1602.