"Greed for the things money can buy ("natural wealth") is a bad thing, but it is finite. You can only enjoy a finite amount of food or drink, houses or cars, or even sex. But greed for money ("artificial wealth") is infinite. You can always want more. It's like a drug: you have to have higher and higher doses of it to give you the same "buzz" you used to get from little bits of it. And this never stops. It is Hell's false infinite."