aka: Anti-Intellectualism

Carl: Let's make litter outta these literati!
Lenny: That's too clever. You're one of them!

Many tropes deal with media manipulation, misinformation, ignoring/impersonating professionals, demonizing intellectuals, and/or idolizing "stupidity". For more tropes about intelligence and lack thereof, see Intelligence Tropes and Brain Chain. Note that deconstructing a smart character trope or an intelligence trope counts as anti-intellectualism too.