I wouldn't go far as to say they'd go bankrupt. I mean, theres three whole other Kingdoms worth of Dust that Torchwick hasn't touched, and I'm sure they have stockpiles laid in somewhere. Now, investor confidence would be an issue, but I have a feeling that the Schnee Dust Company isn't publicly traded anyway.. Given what Dust is used for though, it does raise the question of what he needs all that Dust for.