It’s been years since I last Catan’d, so that’s my excuse for any and all factual inaccuracies of how the game actually works.
(board game war story incoming)
This is based on that one time I tried hoarding all the wheat, only to lose when the other players realised they could easily win by building the Longest Road (no Wheat required!), and refused to trade with me, leaving me with a stockpile of completely useless wheat, and nothing to do but obnoxiously roleplay my status and situation.
The mental image of a self-declared Wheat King, crouched atop his overflowing silo like a vulture guarding a rotting carcass, muttering paranoid fantasies through crooked teeth, has remained with me to this day.