While there has been corruption and money-laundering, by some crooks who wormed their way in, the actual purpose of the Vatican “bank” is to handle the money for the Vatican’s charitable activities.
“Closing” the “bank” would not help the poor.
Oh no, not you again spreading your flowers across the FR stage. So tell me, is there no such thing as a bank in the Vatican?
http://www.forbes.com/sites/realspin/2012/06/26/the-vatican-bank-the-most-secret-bank-in-the-world/