When you live on cash, you understand the limits of the world around which you navigate each day. Credit leads into a desert with invisible boundaries.
The curse should no longer rest upon the world itself, but upon that which is sinful in it, and instead of monastic flight from the world the duty is now emphasized of serving God in the world, in every position in life.
Imagine a world in which you had Saddam Hussein, who had the capacity to make a weapon of mass destruction, who was paying suiciders to kill innocent life. Imagine what the world would be like with him in power. The idea is to try to help change the Middle East. Part of the reason we went into Iraq was we thought he had weapons of mass destruction. It turns out he didn't, but he had the capacity to make weapons of mass destruction.