And prime minister of Singapore was a senior wrangler at Cambridge: https://en.wikipedia.org/wiki/Lee_Hsien_Loong https://en.wikipedia.org/wiki/Lee_Hsien_Loong

And prime minister of Singapore was a senior wrangler at Cambridge: https://en.wikipedia.org/wiki/Lee_Hsien_Loong https://en.wikipedia.org/wiki/Lee_Hsien_Loong : "His college tutor, Denis Marrian, later described Lee as "the brightest mathematician he had admitted to the college". Béla Bollobás said that Lee "would have been a world-class research mathematician", but his father did not realise this and persuaded Lee to leave the field."