And... it's totally arbitrary.
Top people come from non-top schools, and lots of non-top people from from "top" schools. And some top people come from no school at all.
Top people come from non-top schools, and lots of non-top people from from "top" schools. And some top people come from no school at all.
And intelligence agencies are government mandated, not marketing made. Or at least I haven't heard any marketing from the NSA saying how selective they are in admissions (as if that means anything).