People who are professionally successful despite being fucking awful at it.
It happens a lot these days

F'rinstance, there's loads of singers who either can't hit a note more than half the time, or if they can, can't be heard unless they have a radio mic strapped so close to their mouth that it looks like a piercing. Examples include Geri Halliwell (can't sing, but does it loudly), Madonna (can't sing loud), Britney Spears (can't sing or do it loud), any reality TV Cowell sockpuppet who has to be Autotuned to death to be able to get anywhere near the notes written. Leonard Cohen and Bob Dylan can't sing for shit these days (Cohen never could). They are terrific songwriters, but if they ever go near a microphone I'll give them a Chinese burn somewhere it won't heal.

Actors who can't act - almost every single soap star who hasn't been seen in anything before they start out in soaps is cast because they're so like the written character they don't have to act. This is an advantage in the frenetic pace of soaps where agonising about plot and character would drive sane people mad, but anywhere else (aside from sleb cameos e.g. panto) it's easily exposed as "being a shit actor".

Any singer or actor who, after they've already hit the big time, starts having singing or acting lessons is a case in point. (Fair enough if you're keeping existing skills sharp, but if you're acquiring them in the first place you can fuck off.)

All the current senior execs in the banking industry.

Most of the last four or five UK Cabinets (and all the current one, without exception).
( shinyshinyscalp less a man, more a way of life, Thu 31 Mar 2011, 16:33, 1 reply)

Agreed
There is a long list of sportsmen and women that could be added to this too.
(FirstBendBunching All four back please..., Thu 31 Mar 2011, 19:14, closed)