Why should I be surprised that there are people who are good at "do the right thing" but not "do the thing right" when so many SWEs are the opposite? Why do we

Why should I be surprised that there are people who are good at "do the right thing" but not "do the thing right" when so many SWEs are the opposite? Why do we keep expecting unicorn people who are good at everything both directly and indirectly related to their role? This is why we have cross disciplinary teams.