Satoshi, if he does indeed have the rumored 1.5 million coins, would hold 7%. That is a HUGE amount of the total currency to be able to "play the market" with. Or do whatever the heck he wants. Again, it's not jealousy, it's my concern for the power that that would give him to manipulate the currency and the people.
You can think it's a myth all you want, but when people already feel that $60B is too much, I can't imagine what they would think about a single person owning $1T.
I think he does have at least a million coins, it's not hard to see how this may have happened. I'm sure some clever hedge fund manager bought like crazy at <$1 as well and probably owns a sizeable chunk.
But your premise that's it's somehow unacceptable for anyone to hold this large a proportion of the currency is based around the notion that Bitcoin will somehow replace all fiat currencies one day. I'm sorry to break your heart, but this won't happen in our lifetimes. The sovereign states will always retain fiat currency in some form, it's what keeps them in power.
In any case, they have to sell their coins sometime, and then the "problem" goes away.
At worst, Bitcoin will fade away in a few years time and people will move on to something else. At best, Bitcoin is going to become an established worldwide online alternate currency worth hundreds of billions. I suspect something in the middle will be the reality.
In the best-case scenario, Satoshi may yet be worth billions, but I'm ok with that. He's got to do a better job of it than the Rothchilds or any of the other slave owners from the 1800s who bought and sold the world, simply by being in the right place at the right time, hmm?