valedictocracy
n.— «This truly will be an administration that looks like America, or at least that slice of America that got double 800s on their SATs. Even more than past administrations, this will be a valedictocracy—rule by those who graduate first in their high school classes.» —“The Insider’s Crusade” by David Brooks New York Times Nov. 21, 2008. (source: Double-Tongued Dictionary)
Further reading
When a teenager went a week without talking as part of a school project, he noticed a surprising side effect: Instead of rehearsing a response to what other people were saying to him, he was focused on listening — and feeling smarter as a result...
In a 1968 list of Cheyenne High School slang that ran in newspapers around the United States, Clyde, written like the man’s name, meant one’s head or mind. The Wyoming students’ examples included Use your Clyde! and put it out of your Clyde...