Is it always about the money?

No. I came across a very nice article on TechPinions about what motivates already crazy rich people like Tim Cook to work hard every day. Hard work meaning, not working from 8 to 6 and complaining of fatigue to your spouse, but it means waking up at 4:30am and reading customer emails [BusinessInsider] and dealing with crazy patent-trolls [ArsTechnica] the rest of the day and somewhere in between also try to come up with "new" product categories to revolutionize! 

Tim Cook has said that - money is not a motivator for me - No doubt that is mostly true. What does motivate him? The morning meeting with the lawyers over the next patent suit? Responding to customer complaints over iCloud or email? Reviewing highly complex procurement contracts? Testing the iWatch 18 months before its launch? Firing Scott Forstall? Firing John Browett? Interviewing candidates to replace him? Talking with Walt Mossberg? Meeting with the CFO to decide when to buy back the next chunk of the company? Having to sit through that meeting where they discuss how the HVAC plans aren’t up to code on the new headquarters and then being interrupted because PR is upset that so many of the Apple faithful are inquiring about the allegations that Steve Jobs and Eric Schmidt conspired to keep engineering salaries in check?
— TechPinions

As this article points out, Tim Cook has many tens of millions and still continues to work crazy hard and most of the common folks (including me) if asked, what they would do if they won, say a $100 million dollars, would say, never work again! It is safe to say that if you have that attitude about what you do, you will never have that much money. So its a paradox... you can earn so much crazy money only if you don't care about it or money is only a by product and not the end product! You can be really successful only if you are driven by passion and motivation for what you do and if you genuinely believe that you can make a dent in the universe! Defining this part is easy, living by it, crazy hard... 

Some of the Apple executives net worth (Source - CelebrityNetWorth.com)

Some of the Apple executives net worth (Source - CelebrityNetWorth.com)