Each QuickPicks entry has its own payout terms. Entrants in the same contest are not necessarily playing for identical payout amounts.
Your potential payout is determined by your entry fee and the multiplier displayed on your entry before submission. Another entrant may have a different entry fee, different selections, different implied probabilities, or a different multiplier, which can result in a different potential payout.
This means two entrants in the same contest may both go perfect but receive different payouts. It also means that if no entrant goes perfect and multiple entrants tie for the highest score, the tied entrants may receive different dollar amounts because each entrant's multiplier is used to determine their share of the prize.
Your displayed payout is guaranteed if your entry qualifies as perfect under these rules, regardless of the payouts displayed to other entrants in your contest.