That'll be the tradeoff with games that allow players to earn money (play-to-earn); it has to be rewarding enough to attract players, but not rewarding enough that people can turn it into a job (automated or otherwise). This is why these play-to-earn crypto/nft games aren't going to work. Or well, they work, but not the way people think they do - it'll be low wage countries doing the grinding, and people with expendable income / whales doing the buying, and I'm not sure if the two groups are aware of each other's existence.