Alright, I admit I didn't read the last part of your post; I just saw the beginning and was a little 😱 that someone would put plagiarizing someone's assignment on the same level as using personal connections to help land a residency or job. You're right that to just say "someone says it's wrong" is a bad reason for saying it's wrong. So here's my reasoning, perhaps the same reason that so many educational institutions say that copying another student's work is not allowed. By copying someone else's work, you are stealing. You are taking credit for a piece of work that you did not produce. My own moral code tells me that that is not right. On the other hand, when you use personal connections to help land a job, you are not lying or pretending to be someone else. Relationships can be assets, whether those relationships were established by pure luck (e.g. you happened to grow up in the same hometown as the residency director) or your own determination (e.g. you made it a point of doing a rotation at the specific hospital during medical school so you could get to know the attendings). Perhaps it seems unfair if you're the person who doesn't have those connections, but I don't think you can say it's the same as cheating. That's like saying that med schools shouldn't accept students with average GPAs and MCATS but extraordinary EC's or interview skills, because they cheated.
Edit: ok, so I probably just sounded like a d-bag. I realize you were only playing devil's advocate there, so I don't mean to sound so b*tchy.