From what I've read Jobs wanted a completely different future for Pixar (something like 3D rendering software for the masses) than what Lasseter, Catmull, and others wanted. It was their pushing for the future they saw and desired that's the reason behind the success of Pixar as we know it today. Jobs was supposedly looking to sell off Pixar and viewed it as a failure until Disney showed up.

Putting Pixar's success on Jobs alone is a huge disservice to the true believers that actually built Pixar.