"Working classes have lower IQs"

Higher Education Minister Bill Rammell [came out with the inevitable] "These arguments have a definite tone of 'people should know their place'."

Correct! I know my place, and that's in an office doing tax planning, I'd be an absolute disaster on a football field, in a car repair workshop or in an operating theatre.

Is Bruce Charlton not stating the corollary of the blindingly obvious - that people with higher IQs (or other innate abilities) tend to get to the top, and that most such traits (be it IQ, sporting ability, musicianship etc) tend to be hereditary?

Would it help to allow the 'working classes' to take more exams like this?