This type of behavior kills community successfully with the consequence of Steem price going to zero ) And at the end a whale would have a lot of Steem worth nothing. Also, of course, some would go for a quick $ , still many would prefer act in not so short -sighted way. Since the way someone is voting is completely transparent you could see that many would upvote good posts even after first payout, and that mean getting no curation reward at all.
Here you can see some examples https://steemit.com/steemit/@lukestokes/the-second-payout-christmas-in-july-or-second-chance-door-prize