You should probably add a disclaimer somewhere in OP. In no way does this represent actual people moving money for actual services, goods and whatever. It includes everything, including:
1) People moving money to their own (other) addresses/wallets.
2) Exchanges and other services moving their money.
3) Moving Bitcoin into cold-storage (can fall under both point 1 or 2).
Well this actually explains most of it why there's alot of money transacted everyday. For example, i have a million dollars worth of bitcoin which can attract a lot of hackers so thats why i must changed my storage once or twice a week just to secure my money. And since im talking about million dollars i must spread in more 1-10 addresses or maybe more. And since there are alot of millionaires on Bitcoin then this kind of things may explains the reason why lots of millions dollars worth of bitcoin are transacted everyday.