Sorry about the clickbait title but that's exactly the question.
This was triggered after reading about Stuyvesant High School in New York in some other forum. It's a selective state high school in New York. Their list of notable alumni, en.wikipedia.org/wiki/List_of_Stuyvesant_High_School_people , is jaw dropping. Multiple nobel laureates, Field medal and Wolf prize winners, technology pioneers, and pretty much any other field of human endeavour I can think of.
While looking at notable alumni from the most selective British schools, there is nothing like that breadth. Eton for example, after removing the royals and politicians from their list, has a pretty short list of notable alumni given how long they have been around, with a heavy bias towards humanities - en.wikipedia.org/wiki/Eton_College
Similarly others, in the state sector, say, Queen Elizabeth Boys en.wikipedia.org/wiki/Queen_Elizabeth%27s_School,_Barnet
Same in the girls' schools too, short list of notable alumni mainly in media and humanities. Though with the girls' school I understand that the historical bias against women having careers will naturally limit the numbers.
So the question is -
Given that the top selective British schools are apparently getting around top
5% of the students by abilities in a cohort, and top 5% in either UK and US will have comparable potential when they start their academic career, why do British selective schools produce so few high achievers in a field, espcially outside politics, media and arts?
Possibilities that come to my mind -
The Wikipedia pages of British school are incomplete (probably unlikely, as the schools and their alumni are quite motivated to edit these to fill missing information?)
The British selective schools are not in fact getting top 5% of the students in their cohort. They are just getting children whose parents have prepared them really well for eleven plus. These children "underperform" eventually. They are still high achievers, will go to good universities, have good jobs, but unlikely to make path breaking contributions in their fields compared to their US peers (or elsewhere?)
The school outcomes reflect the nature of British economy and society. There isn't enough incentive in the field of sciences, the economy does not demand much either or at least not as much as the US economy. So the schools do not produce pioneers.
Something else?