Guess what made Steve wealthy enough to buy Pixar? The fortune he made at Apple. Which he deserved.
Once he bought Pixar, what made him as wealthy as he is today? The fortune he made at Pixar, turning it into one of the best computer animation production houses in the industry. Steve is a very skilled businessman, and it's that management and leadership that decides whether or not a company is successful or not. I'm sure we all know some companies who have either died or come close to death despite having the best talent in the world, because they had bad management. Apple was in that boat until Jobs (though arguably, Amelio did bring it closer to profitability).
Without someone like Jobs, the rest of us would be missing out on the technology we enjoy today. He deserves his fortune. Yes, he has more money than you do. He probably has more money than all of us put together. He's a genius. He's an genius who makes decisions no one agrees with until time proves him right (the iMac, ending Mac OS licensing, the deal with Microsoft in 97). The reason he has a lot more money than we do is that he has a lot more talent than we do, and he's willing to use it. And when Steve Jobs uses his talent, we all win. Steve Jobs makes more money, we get cool stuff. The only way Steve's wealth in any way affects my wealth is when I choose to buy a ticket to a Pixar movie or a Macintosh computer. And in those cases, it's a fair trade--my money for Steve's product. (Steve's employees, of course, also get paid--in Apple's case, more than he does--in Pixar's case, I don't know, but I suspect that increasing Pixar's value makes him wealthier than indirectly paying his salary. Again, the employees are making a fair trade--their talented work for their pay.)
I always find it funny when people condemn capitalism, and then get rich. Capitalism provides the opportunity to get rich, and you're not hurting anyone else in the process, because you can only get their money by fair trade and with their consent--which they only give if it's in their best interest! (Obviously, the US does not have a pure capitalist system, which is why I despise such things as corporate welfare and the current tax system). Steve took a risk in the 70's and 80's, and that risk made him wealthy enough to buy Pixar, which was secure enough that he can hold onto his wealth and let it increase, because Pixar's a good investment.
I know I've rambled on awhile, but basically, Steve has more money than me, that doesn't hurt me and it comes as a direct result of things he did that actually help me, and he deserves every cent he has.