Yep. She manages to polarize the nation/world 6 decades after writing Atlas Shrugged because she was so inept and knew so little about economy and production, because we're all so interested in talking about people and things that are covered in the dust of irrelevance. That must be it...
It isn't that we love talking about people and things that are irrelevant, but rather we discuss among ourselves the puzzling phenomena of peoples' continuing obsession with ideas proven to be bad, such as unchecked, unmitigated, unhinged capitalism, and the myth that economies are self-regulating to about the same extent as a boiler with a broken release valve. To further that point, no actually, she didn't know much about economy or production or government's rightful role in those enterprises. She ignored the necessity of public investiture in "large, expensive, dangerous, projects of unknown risk," to quote Dr. Tyson. It's plainly obvious that her economic opinions were informed by her personal life, tastes, and wants, instead of any seriously considered economic policy or system of policies.
To further this point even more, consider its name: "Objectivism." Really? Objectivism? Instead of giving her philosophy a name taken from its central thesis--such as existentialism pondering existence, nihilism pondering (literally) nothingness, communism and its focus on community, and even capitalism with its focus on capital (see a trend yet?)--she chose the vanity of claiming objectivity. Objectivism, as if all other economic ideas and philosophies--all philosophies, really--were not objective. See the problem? This is just the name, like naming the worst street in town "Pleasant Street." If you need to name it so, it probably isn't, and if she needed to claim objectivism... you know how it goes. It is downright Orwellian in its inversion.
Oh, Ayn Rand's ideas were terrible. She was terrible. Terrible ideas the product of the terrible mind of a terrible person who treated people terribly. She was a sadist. Great writer, yes, a great story teller. But stories. Just stories.