I do not think there will ever be any a real robot nurse. That’s not to say that robots won’t enhance nursing care, but a human will always have to be a part of the discussion.
You expect a nurse to have integrity and use good clinical judgement, but not every one does. It’s even possible that not everyone can. Judgement is subjective, and even though the it is the goal for any prudent nurse to give the same level of care as another, it just doesn’t always happen that way.