1 Timothy 6:10 - "For the love of money is the root of all evil: which while some coveted after, they erred from the faith, and pierced themselves through with many sorrows."
Banks collapsed because people valued imaginary money more than hard assets.
Homes were lost because people imagined themselves as being rich.
Most sold their souls for debt and many cannot find their way free from under the control of he who owns this debt.
And the love of this Devil is the "Root of ALL Evil.".