To participate in a lethal injection is to occupy the medical role and use medical training for a purpose that is not part of the goals of medicine and that harms the recipient of treatment.
Refusal of pediatric euthanasia can be considered iatrogenic insofar as it inadvertently prolongs patient suffering, but attitudes differ cross-culturally.
AMA J Ethics. 2017;19(8):802-814. doi:
10.1001/journalofethics.2017.19.8.msoc1-1708.
Some question whether plastic surgeons bear responsibility for promoting suspect norms of beauty, given that certain types of cosmetic enhancements reinforce common conceptions of normality that are harmful to society.