1) Worship of icons and behaviors instead of the things which they represent; that is, cargo cult entrepreneurship. This is my own vague and probably incorrect usage.
2) If someone exclaims "Let's change the world," I would ask "Which part? Why?"
Iconoclasm has a secondary meaning "A person who attacks settled beliefs or institutions." Changing the world does; to do so vaguely, or at random, or without actually mentioning the target, is not always such a sane thing to do.
Iconoclasm actually means the opposite. Iconoclasts were a bunch of people in the middle ages who had something against religious images and so went around breaking them. Icons = images. Clasm = break.
So the traditional meaning of iconoclast in this context would be someone who seeks to break accepted imagery on a specific topic.
