I mean there's a point when you can go "why bother selling a game when i can learn to algo trade and maybe get hired by a major investment bank" if you really want to push the logic of all money no creativity to its inevitable end point. There would be no gaming industry. There would be no art. There would be no music. There would be no sports. There would be no movies. All of that is wasted profit potential against simply being involved directly in finance and in trading assets, preferably rooted in underlying material commodities.