I really, sincerely don't understand that. How does an unscannable barcode prevent a doctor/nurse from administering medicine they are holding in their hands?
The people writing hospital policies or regulations aren't thinking about individual patient outcomes unless some notable news story came out recently, and even then it's maybe the third or fourth priority on a list a hundred items long.
Bureaucracy certainly stops smart people from doing the right thing, but more often, it stops stupid people from doing the wrong thing. Hack away at bureaucracy at your peril.