[locopati]

That looks sustainable. I applaud what he's done but also wonder how "owns two jets, two helicopters and a private island" fits with deep concerns about sustainability. Mind you, I'm sure on the balance he's still ahead when it comes to giving back more than he's taken.

[jacquesm]

That's a good point. I think that very few people actually practice what they preach.

The way in which society rewards successful people is to give them lots of money, I suspect that the real equation is not just whether you've given back during your life more than what you have taken but how much you will have influenced the world for the worse or the better in the long term.

In that sense it is a lot harder to figure out how much a single individual can change things.

Two jets, two helicopters and an island sound a bit over the top, but I think I'd have to know more about the uses they're being put to before I'd make a call on that.