Why does nobody power up on Steem?

Steem has a 4 week power down, so staking is not a major commitment. It also has an extremely overvalued SBD.

And yet, the vesting fund on Hive is larger than on Steem.

That's with a smaller overall supply, and 74.5 million Hive locked in the DAO.

Are Steemians not willing to commit to Steem?