Rome is a banking system, not a faith which correctly counts Christ's righteousness alone as being capable of saving sinners.
It does not. Nothing in the Catechism says that.
Roman Catholicism also teaches that this righteousness, if it exceeds that which is necessary to save someone, can be given as credit to another person.
Neither is this taught in the Catechism.
Rome is a banking system, not a faith which correctly counts Christ's righteousness alone as being capable of saving sinners.
Negative. Do you have any evidence of your claims?