There is no morally compelling reason to distinguish a doctor from a tank driver on the battlefield except for the fact that both sides agree to protect medical personnel.
The AMA’s Historic Health Fraud and Alternative Medicine Collection includes images of quack devices from the early 20th century that generated oversight we now take for granted.
AMA J Ethics. 2021;23(9):E721-738. doi:
10.1001/amajethics.2021.721.