You do realize that pairing is also delivering in everything you mentioned? Just because you hadn't the luck to experience this in your career so far doesn't invalidate this
Oh I had plenty of luck in my career, there are people who the entire team goes to when new/unknown/specific problems show up, and I happen to be one of them.
But I don't sit over someone's shoulder at all times. I only try to help when I'm needed, otherwise I'm knee deep in my own deliverables.
