I think you may be missing an aspect of this. The original result in game theory, implied that systems can be globally cooperative with selfish individuals. This has been used to justify Capitalism, much like the concept of evolution within social darwinism. If systems can be globally cooperative with selfish individuals, then we as individuals are doing our duty by being selfish. This is why a highly technical result within mathematics is so widely celebrated. This counter result undermines the first result - granted the first has been taken wholly out of context, but hopefully so will the second. But I'm not holding my breath...