Medicine is a conservative field - unfortunately that also includes ignoring anything harmful to their cult aspects even if it is trivially obvious like "wash your hands" after doing a damn autopsy before delivering a baby. Or yes infants can feel pain - not using anesthesia because the control isn't fine enough to not have a better chance of killing them is a grim but justifiable thing initially but inexcusable once it becomes possible to do so safely.

And the sleep deprivation and hazing "I did it so everbody else must too!" is definitely a cultic thing.

I use cult very deliberately to point at the reasoning being entirely irrational and social as opposed to underlying value. And also because actual cults use slerp deprivation.