In videogames with game currencies to play with, they call it an RPG or RPG elements. In most of theses types of games, you start out poor, but then the game allows you to gain these in-game currencies in a generous way just by playing because the design is to ultimately give you that rewarding feeling that you've earned everything via playing the game. That work/reward ratio is what makes these games flourish because the design is in favor of the player as you play. Bright Dust on the other hand is connected to real world money. It's an in-game currency that is utilized for items that can be bought with real money. In summary, it is an in-game currency earned via gameplay that is in direct competition with real money. If you're smart enough, which one do you think matters? In-game currency or real money? That's where greed comes in. This is about greed, not player reward. When it comes to real world money, the temptation to weigh in the favor of greed will win. That's why they manipulate your in-game reward system to be stingy. Not because they want you to grind. There is nothing to grind if there is a limit to it and the only next solution is use real money. It's greed. Open your mind. It's greed!