If you mean to say she was part of the Great Web that was being built around Rand, no one would disagree, I think. But I meant the twisting of chance that occurs around him, which makes people do things that are very low probability. We've seen her resist that thrice on screen.
Really? I believe you, but can't remember specific instances.
That said, despite her whining and "independence," here's what she did: Took care of the Black Ajah. Unified the White Tower. Gathered together all the different nations, got them in one place, and had them listen to Rand's Commandments.
Don't forget that she also destroyed/killed Mesaana and Taim and saved the Wheel with the (admittedly lame named) "Flame of Tar Valon" weave