Most of what's usually said about Steve Jobs' role in Pixar is a complete myth. It's quite outrageous the level of falsehood when you read about it from those who were there before Pixar was big.

For starters, Steve Jobs didn't invest in the Pixar that you know (the one which makes films), it was a hardware company and it never occured to him to make an animated movie, just sell hardware. It was the people working there that saw the potential for films made 100% with computers.

He didn't even pay much attention to Pixar until after they made the deal with Disney to make Toy Story and critics started saying it was going to be huge. After that the "visionary" took charge and, of course, took all the credit for himself.

You can read more about it in the link below. You aks who Alvy Ray Smith is? Well, one of the cofounders of Pixar and its first Vice President. And by the way, he was the inventor of the Alpha Channel. http://alvyray.com/Pixar/PixarHistoryRevisited.htm