It might be more accurate to say that Ayn Rand's heroes start with grand and awesome schemes. There's a lot of speechifying in between, but in terms of action they always seem to degenerate into some form of "screw you guys, I'm going home" by the end.

I haven't read it for a long time, but I remember thinking that the first third of Atlas Shrugged is a much better book than the whole thing -- because up to that point, it's a novel about building something great in the face of adversity, and after that the adversity wins and it becomes a novel about spite and destruction on all sides. Also because it's way too long for its plot, but never mind that.