For fun, I like to claim that Hufflepuff is the only house that actually gets any work done. While the other three are squabbling among themselves and acting like they're so important in a world that's ruled by filthy muggles who could shoot them all to death if they ever found out about them, the Hufflepuffs are tending to matters important on a cosmic scale, like battling eldritch horrors lurking beyond the fringes of reality. This is the reason they're so uninvolved with that whole silly matter with the snake guy and that unspectacular nerd with the scar. It's completely beneath them, and if they did get involved, the whole mess would have been solved before the first book even began. That whole reputation of being the house of leftovers is one they actively cultivate to keep the others houses out of their goddamn business.