Ayn Rand died more than a quarter of a century ago, yet her name appears regularly in discussions of our current economic turmoil. Pundits including Rush Limbaugh and Rick Santelli urge listeners to read her books, and her magnum opus, "Atlas Shrugged," is selling at a faster rate today than at any time during its 51-year history.

There's a reason. In "Atlas," Rand tells the story of the U.S. economy crumbling under the weight of crushing government interventions and regulations. Meanwhile, blaming greed and the free market,...