No, what's actually broken is positive investment rates. Why would the central bank pay you (i.e. print new money and give it to you) just because you have some money lying on the central bank's account? And by "you" of course I mean big 1% banks, not the 99% population who don't have access to this feature. Commercial banks should be making money by taking consumers' deposits and loaning them out to businesses, taking a cut of the earned interest. If they can't do that, do they actually have a reason to exist?