[MertsA]

If the patient is conscious and starts exhibiting symptoms indicative of a medical emergency then there's the possibility of treating it. If they're unconscious you might not know about it until you start seeing cardiac or respiratory symptoms, at which point you've already waited too late and they could die, be left in a comatose state, or suffer from brain damage. How is improving the odds of preventing that not "for the benefit of the patient"?