If I owned a banking cartel, I would understand that banks make money by loaning money, so if I wanted to make more money I would keep loaning money. If I had recently made a bunch of lousy investments by loaning money to high-risk borrowers, I would pull back a bit and stop making so many stupid loans, because I would realize how much money I lost on those stupid loans, and since my goal would be to make money I woul want to stop losing it. And if some other idiot banker - let's call him "Bob" - came along and said, "Hey, we can rule the world if we stop making loans!" I'd say, "Sure, Bob, let's do it!" and when Bob announced that he was going to stop making loans I'd announce that I was still in business, albeit with slightly higher interest rates, and everyone would hate Bob's Bank and flock to mine. It would be a beautiful backstab, but I would feel a little bit bad for Bob so I'd buy him a Bentley with a puny fraction of the extra money I earned.