* No documentation ties it to its putative originator.

* Its earliest known reference did not appear until long after the death of its supposed originator.

* Multiple sources are claimed for its origins.

* Contextual information indicates the words are of more recent origin than claimed. (deflation/inflation)

1. https://www.monticello.org/site/research-and-collections/pri...

2. https://www.snopes.com/fact-check/bank-shot-2/

One of the “Rules of Misquotation” outlined by Ralph Keyes in his 1992 book on that subject is that axiom that “Famous dead people make excellent commentators on current events.” Given the fear and uncertainty engendered by the current economic situation, and the disgruntlement expressed by many Americans at the thought of providing taxpayer-funded government bailouts to financial institutions and other large corporate entities (such as the auto industry), it was only a matter of time until someone trotted out a quotation (apocryphal or otherwise) from a respected, long-dead figure demonstrating that this whole economic mess was both predictable and inevitable. And one could hardly find a more hallowed figure in U.S. history than Thomas Jefferson to deliver this message, warning us from across the centuries that predatory banks and corporations would eventually impoverish us all. [snopes]