Steem is not getting much members at the moment. The pace of network growth is slower than expected.
There is also a growing number of inactive accounts. People see they can hardly succeed with this high prices for Steem Power. Only the old members benefit. And reward pool is unequally inclined in favor of old members. Vote exchanging, users with 10k or more SP self-voting, paying vote bots...this is not what we want to see here.
Instead, use that part of rewards from the pool for incentives for those who spread the word about Steem.
Otherwise, the network will soon stop growing and the value of Steem will be $0.10 or less.