I think Dunk’s adventures being so insignificant is part of the point. All these conflicts could’ve been resolved without him. The main decisions are always made by someone else. People he protects aren’t important for history, at least not at the moment. Yet that’s precisely why it matters. No one would care if Aerion Targaryen broke all Tanselle’s fingers. No one would care if during the conflict between Standfast and Coldmoat some peasants died. (And considering the complicated relationship between Rohanne and Eustace and that Bennis is a dumb fuck, I think some fight would’ve happened one way or another). And certainly, no one would even think twice about Glendon Flowers, the Knight of the Pussywillows. But Dunk always cares enough to put his life on the line for a bunch of no-names. And that’s what makes his leg worth the prince’s life.