Over the past few years the government has performed so dismally on law and order that it has ceded the initiative to, of all people, Jeremy Corbyn.
我查阅了 of all people 可以翻译为 在所有人中,那样为何不需要 among 呢?
假如用了among all people, 你还是会问:为何不需要of all people ?
Of all the student, Tom is the cleverist.
Among all the student, Tom is the cleverist.