Having established that the mega whale cannot buy Steem, I have a much better suggestion for him:-
If he really has all that money, his best bet is to grab the open source code of Steem and create a NEW rival Steem blockchain.
This way he acquires Steem for nothing.
Because the real value of Steem is US, the 65,000 active users. Having established that we can't be bought, the mega whale simply starts a new Steem 2.0 related company, call it NOSTINC, and he recruits 21 new witnesses, and starts again.
Since he knows that a major problem with Steem itself is the lack of dolphins and orcas, and the poor distribution of the token, his best bet now is to steal us from Steem.
To do that he AIRDROPS his STEEM2 token to EVERY active user of Steemit, with a rep score of 40 or more, in EQUAL amounts. In so doing, he creates 65,000 dolphins in one easy sneak attack.
Of course, he reserves 40 percent of the tokens for development, and 10 percent for himself. He is a mega whale, after all, so that's his reward.
Now, given that he has 65,000 dolphins, he now creates new rules for them to follow. Self-voting is made technologically impossible in Steem2. All bots do not work in Steem2 and are completely prohibited. Huge reward incentives are distributed to dolphins who curate new active users. When a curator pushes a new user up a rep point, he cashes in double curation rewards. When a minnow is curated, a huge curation reward lands in the lap of the curator who made that minnow.
Al incentives are on growth and active users. Everybody who makes a new one makes more money.
Flagging is only encouraged on users who create fake accounts and are caught, and on users who create circle jerks.
All incentives created by the mega whale are designed to push the active user base to 2million people. At this point, corporations will jump in, join the party, and Steem2 can fly to the moon. :)
I like your utopia the best!