The items wouldn’t get made and end up on your hard drive if not for that revenue model though.
I just told you - people did this for free. For fun! Simply because it was interesting!
Your interest has been exploited for profit. It's leverage, to trick you into spending more than you would, if they sold games honestly as a product or a subscription service.
Which is why this abuse is in games that are full-priced products... or subscription services. This business model has spread into World Of Warcraft. It is the dominant strategy. If we allow it to continue, there will be nothing else. It's why there hasn't been a new GTA game in thirteen years. It's why the next one will inevitably develop an online hole you can throw unlimited money into.
This specific game is a billion-dollar drain on what could exist instead. Long-anticipated projects - entire beloved studios - have been shuttered, chasing the absurd money-for-nothing profit margins of "live service." It's the same lootbox pay-to-win gacha crap everybody finally grew disgusted with, barely disguised by saying "it's just cosmetic." It's pulling the same levers in your brain.