Why is the nurse criminally negligent, but not the company or programmers which made the software that runs the automated medicine cabinet? Or the hospital adm

Why is the nurse criminally negligent, but not the company or programmers which made the software that runs the automated medicine cabinet? Or the hospital administration who failed to recognize and do something to correct the systemic problem of why constant "overrides" are needed to complete normal tasks? Edit: maybe drug companies are even partly responsible for confusing names & the whole system of generic versus trade names (as it seems this incident wouldn't have happened if the generic name were the only name by which the substance was known). I'm not saying any of the above should be. I just think we should compare and contrast the medical profession with aviation. The reason the accident rate is so low in commercial aviation is a systems approach to safety. In the medical profession it's all about machismo and individual responsibility - which doesn't lead to continual improvement as an industry.