Sachin, has your query been answered?
Sun, just for clarification, there is a difference I believe. Editing by an author before the submission is like correcting an answer by a student before submitting the same to the teacher and editing by an editor is like the teacher correcting the paper.
Coming to your analogy, again, isn't there a difference between a patient needing urgent medical attention being brought late to the hospital and the doctor taking time to shift him to the ICU? The patient himself or his relatives or friends would be (are expected) aware of the medical condition of the patient and they should shift him immediately to the hospital while the doctor might have to go through the medical records and might have to conduct some tests to diagnose the problem and then make a decision. And in some cases, where a speciality doctor is not available, the doctor in the casualty might have to call for him and that delay also need to be anticipated.
So, let it be that way. Better, I feel.
“It is better to change an opinion than to persist in the wrong one." – Socrates