I'm not really sure what you're saying here. Certainly Rand is a larger than life personality to may Objectivists. Personally, I believe that she was the second smartest person who ever lived. Second only to Aristotle.
I think I have read nearly everything written on Objectivism and I'm very familiar with Objectivist views on Capitalism. I'm not aware of where Objectivism states that individuals exist for the needs of the economy. That concept is anathema to Objectivism.
No expert on objectivism but it always seemed to me that those folks were attempting to figure out a way to obtain “The Blessings of Liberty” without the need to invoke God.