His bank account grows.
Without Arnold (and before him Reeves and Park), the fitness industry would be a whole lot smaller.
Without Arnold the Action Film genre would be a whole lot smaller.
Without Arnold bodybuilders, strongman competitors, powerlifters, et al would be whole lot (physically) smaller. Whether or not this last part is "good" is up for debate. Looking at the last couple of decades of the O, I would say not. Regardless, Arnold is and always shall be looked up to no matter how small he becomes due to the natural process known as aging.