Two stories on the guy I was thinking of:
He has a question on how to do something. He wants to do it "his way", but wonders if it will work. I tell him no. He goes to ask someone higher up and gets another no. He does it his way anyway and it blows up.
After receiving MUCH help on his project, i.e. he didn't do it himself, our boss commends the schmoozer with "he's shown me what he's capable of." We just rolled our eyes and swore never to help again.
He changed careers a few years later.
Why is it that the schmoozers are SO noticeable to their peers, but never to their bosses? Maybe I answered my own question.
And another thing: When I studied computer programming, there was a guy in one of my classes who could not type. There was another who asked me to help him with his program. It had more compile errors than lines of code. My brother, who also came through the same program, said there was always one person in every one of his classes who was like that. These people eventually got a degree and a job, but then of course got found out. Presumably some of them made it into management (due to schmoozing) and didn't get found out.