Galactic Grand Lotto

Compared to the Abelane Galaxy Lottery, the Cosmic Big Lotto is total small fry. The Abelaneans claim to have received the Numinosity from Aha: Every eight months, they randomly select one resident of the galaxy and turn them into a millionaire on drawing day. The money appears as if from thin air. The wildest case on record is where one winner walked away with half the wealth of an entire planet.
But this windfall doesn't come without strings attached: Before the next drawing, the previous winner must spend every last credit of their prize money, or they themselves become part of the jackpot. And when the richest person on the planet is desperate to burn cash, how bad could Abelane's economy possibly be?