The biggets wallets are obv exchanges... certainly the biggest is
As has been said many times now the wallet value images posted are from bittrex beta and are the value of coins owned by actual users within bittrex.
If you are poor doesnt mean everyone is, perhaps you have invested .1 btc, but a lot of guys have invested more than 1 btc, personally i have 2 btc invested in this coin, and im a small guy, i know some guys with more than 100 btc to play in the market.
The world is biggest than your think is.

The number 1 have around 20 btc, is not so hard to believe.