Of course, you can not win if you are not in, the huge pot is the biggest attraction, even those who are not betting will be attracted to try their luck, and it's always made headlines every time the pot riches to 7 digits up, congratulations to the one who won it, this is your biggest blessing in your lifetime.
The pot is there to attract the crowd. Thats all. It has been there since the physical casinos when they first came into existence and still stand there giving the immutable proof that majority of the casino games are in the long term going in the lines of the house and not the player. Few jackpot winners are those who have been really lucky or cheated the game.
But the pot does what it is supposed to do - that is draw a crowd big enough to make sure the casino milks them several multiple times of the amount in the pot, such that in case in future someone wins the pot, the casino is still in a new profit.
I agree, in general casino always win against players, it is by design. People get an entertainment for their bids, it is comparable to buying a ticket to some performance. Fluctuations from the pattern (those who actually win) does not change overall picture.