Is there a benefit to being well-informed? Sometimes, it depends.
A maxillofacial surgeon who is well-informed beyond the point of what is required to earn their title has, by necessity, divested time from their specialization.
I don’t care if my surgeon is well-informed; that’s a GP’s job. A specialist’s job is to be myopically hyper-informed. That’s what the special part of specialization means—knowledge or skill that is greater or better than usual.