The game does pay out, as contestants can win varying amounts of money depending on where their chips land. However, the game is based on chance, so there is no guaranteed payout for any specific contestant. The legitimacy of Plinko and similar games that promise real money payouts is often debated.
WARNING: DO NOT PLAY LUCKY PLINKO OR ANY OTHER play and get real money GAMES!!! They are all scams. You will never win any money. They will either reset your progress before you can cash out, or just not let you cash out at all.