There is no such thing as an economy in GTA.
So get over using the word as though it means something to this game.
To have an economy you have to have multiple means of acquiring money, be it slaving away at missions ( also called grinding which they refuse to allow us to do ), collecting and selling items/equipment, collecting and selling materials, any of these would equate to an economy. As such, there is only grind for bullsh*t scraps.
A global reset would do more harm than good. You really think they would bother going through each individual account to look for "cheaters"? No. Every single person would get the blanket. Everyone. And there are many many people who do not go to forums for the game, and as such, would have no idea why a reset would be happening, and many more would stop supporting Rockstar altogether.
So there needs to be a viable solution to the problem, not a "global thermonuclear account strike".
Because I can tell you now, until there is a way to turn in my millions on GTA back to Rockstar for cash, then I do not feel sorry for people hacking billions of dollars of money.