These are scratch cards, so they already have a set payout for the number they produce. So unless the cards are getting returned to the lotteries and refunded (this might even happen in some cases, I'm not sure) they aren't losing any money. It's just the other people who play the lottery who will have a far lesser chance of winning (as they are sold all the losing tickets rejected by the cheaters)
The whole story just feels like a good Samaritan helping a schoolyard bully steal change out of the back pockets of unwitting classmates.
A happy ending would be the lottery system managers getting thrown out after suffering unexpected sustained losses.