One needs to look more carefully at the function of a bank, and see that they are at the intersection of two distinct activities. Muddling the actors in these two activites, and ignoring the correct role of Government, leaves you in a horrible pickle where you curse FDIC insurance and argue that Grannie should pay for Blankfein's sins. I exaggerate, but not by that much.Winterspeak
The two activities are 1) payment clearance and 2) credit decisions.
Analogy by Reason