scotia wrote: I was going to compare the number of Public School Nobel Laureates unfavourably with Public School Senior Cabinet Ministers - but, as Uncle Ebeneezer has noted, the current Cabinet members may be affected by a reaction to Cameron's Cabinet.
So looking back over the 50 years which I selected for Nobel Laureates, I have had a look at the 12 years of Margaret Thatcher's cabinet from 1979 to 1990. I have tallied up the Secretaries of State (including the Chancellor of The Exchequer) who served in that period, and removed duplications (i.e. an individual acting as more than one Secretary of State). Of the 45 which I have identified, 19 attended the Public Schools which I listed. Seven of these attended Eton.
Now if these individuals are a reflection of the brilliance present at these Public Schools, why do we not see a similar performance in Science. 19 out of 45 as Secretaries of State should possibly provide us with around 7 or 8 Science Nobel Laureates.
Here's another thought. Composition of cabinets within your timeframe have been politically sensitive. Old Boy networks might be expected to be more prevalent where they're less visible/sensitive: Sir Humphrey rather than Jim Hacker. I wonder what your exercise would show if you looked at other seats of power, like senior civil service and judiciary posts?
But, as you say, this is no absolute proof of a defective curriculum. It is much more likely to be the old boys' network, and with very few of the old boys having made their fortunes in Science and Engineering, there may be a desire to keep well clear of such a difficult area with its few rewards.
Perhaps also science and engineering have traditionally been more open to the plebs precisely because they're not dominated by such an exclusive "old boy network"? Such questions of course have to look at a long timeframe: what was the situation when today's Nobel Laureates and Potentates were themselves at school, and even their parents and teachers who will have set their expectations in life.