If the U.S. actually had a free market and if it actually followed the libertarian principles advocated by teabaggers*, then the government wouldn’t even be attempting to fix the Gulf of Mexico spill that is currently in the process of decimating marshland.
And that’s just one problem with ideology. Virtually no matter which one a person chooses, either consequences or intention will be largely ignored. Internet caricature feminism ignores intentions. Libertarianism says “Screw you!” to consequences; Egalitarianism does the same. Utilitarianism is the best at towing the line, but it still fails in many respects to what I think most people want in their ethics and morals. This consistency people seek so much tries to paint the world as black and white, and that just doesn’t work. The current crisis in the Gulf of Mexico would either be made worse or allowed to become far worse than it otherwise would if the U.S. applied an ideology to it.
*When I say teabaggers adhere to libertarian principles, I mean economic libertarian principles – and even then they aren’t that consistent (i.e., favoring publicly-funded roads). But I certainly do not mean social libertarian principles. They hate those.