More insidiosly, they both use powerful semiotics (see, "The International Style" in architecture) and a borderline occult (Gnostic?) insight over the human psyche to manipulate the course of history.
Anyway, thanks for the links. I've bookmarked them for later reading.
Yes, well I am still trying to figure out what capitalism is. Until I do so, I would modify your analogy as follows:
Corporatism::Capitalism Free Enterprise ::Islamism:Islam