[Nasrudith]

Just because you don't speak to them or see them doesn't mean they don't do work. They still have the responsibility of spotting known complications.

Theoretically it could be replaced with a large database but that is a major undertaking to encode once, let alone keep it up to date. In practice there are also trade-offs and judgement calls like "Yeah this may cause kidney failure but living on dialysis is better than dying of cancer."