I was just going to say this too!!
My brother in law is a surgeon and while he is one of the nicest, charismatic person ever and an extrovert, he has mentioned how at work people hardly perceive him as that.
Just last week he mentioned how at work he got called stubborn and stuck up by a patient but in reality he is that way because he has to detach himself completely.
He really has a lot of empathy but during work puts himself in the 'mode'.
I recall he once talked about a lady he was chatting with and operating on and the lady mentioned to him she had just become a grandmother and was excited to visit her granddaughter abroad after not visiting for years.
This really put him under immense pressure as he saw her as human with dreams, saw her life, kind smile and the thought of her family. He almost cried during the surgery
Since then he won't even make eye contact with his patients and never says hello or asks how his patients are before operating on them.
However he will personally see them afterwards, introducing himself as the surgeon who did the operation and will ask about their recovery / how they are doing.
My mum is also a nurse and has said that surgeons who can remain chatty / friendly with patients during operations are usually the less empathetic ones as they have no issues detaching, however the more empathetic surgeons cannot risk getting attached so avoid getting personal.