Why is the largest steemit holder does not vote? One of his voice weighs more than $ 3,000

I have always wondered why the largest steem holder does not vote. Account Hive account@steemit has 15 times more SP than the Hive account@ned (stands in second place).

On the site www.steemdollar.com i saw that one of its voice will be worth $ 3,340. If he voted 20 times a day, users will get 67 thousand dollars.

So why is this account is inactive? Steemit users would be happy if he began to vote.

If someone know the reasons, let us explain.