What if Gangplank had treasure troves that were scattered across the Bilgewater Isles?

Kind of a shower thought, but what if Gangplank had spread some of his riches around in places with traps and puzzles that only he would know answers to? That sounds like a very piratey thing to do and I feel like the story potential from just pirate stories alone would be a massive boon to the lore. And with LoL's massive cast of cultures in a fantasy setting, the possibilities and potential are ridiculous. Thoughts?