The prove is in the past with the robber barons, panics, depressoins, etc. In the past the government enacted measures tostop the excesses such as regulation, anti-trust laws, and progressive taxes. Unfountunely, since 1980 those have been repealed leading to the same historical exesses of the past. "Those who don't heed the lessons of the past are doomed to feel the pain of the repeat",not vermatim. But by George Santanya, check it out!!