Actions speak louder than words.  Ayn Rand may have put on appearances of free-thinking and libertarianism, but the "cult" she organized around her was authoritarian and relied heavily on group think (insofar as, you were OUT if you didn't tow the randian line).  For further reading I'd direct you to this short and entertaining Murry Rothbard essay:
http://www.lewrockwell.com/rothbard/rothbard23.html