> When the bank goes belly up, your deposit is FDIC secured up to the account limit which is tiny in the scale of things.

The FDIC is meant to protect individual people from loosing all of their money from the collapse of a bank, currently at $250k. If you have more wealth than that yet have it all as cash in a single account, then, you're pretty much an ID10T. For regular mere mortals, that's a helluva lot better than a bank telling you to pound sand when they collapse. If you're a business thinking the gov't is meant to protect you, then you are also delusional.