As you stated,the cause is often ATC. Who handles that? The Governement so why shouldn't they give me a part of the fine? It's their fault too that a a customer I'm delayed. If the FAA.DOT collects a fine for a tarmac delay they should share the proceeds with the injured party! (Customer).
If the government caused the delay, shouldn't they be the one paying the fine? And wouldn't the airline be the injured party?