While Rockstar’s offer does hand out GTA$1,000,000 for free, getting the full GTA$3,000,000 requires spending real money on a ...
Additionally, it has a Warehouse that works in relation with certain other businesses and acts as an extra money-making outlet. The GTA Online Bunker (Gunrunning) is also a good option.
While it's hard to argue that the company wouldn't want to make a bunch of extra money on GTA 6, you could also make the case that (based on its predecessor's performance) the game will generate ...