Most business transactions as well as most personal monetary transactions involve the coin of the realm being used as the means to trade or to pay for one thing or another. In other words, we buy things with dollars and we are paid with dollars, of which, because this is the coin of the realm, this makes for transactions being done seamlessly as well as being transparent, one party to another, so that this is the de facto go-to way that business and personal transactions are accomplished, millions upon millions of times each and every day. All this is to the good, as long as the dollar maintains enough stability, so that not only can transactions continue smoothly day-by-day but also so that long-term decisions can be made in the good conscience that the dollar will continue to be stable and of value enough to do so.
However, the problem with fiat currency in general, is that governments have a very strong tendency to debase such over a period of time, knowing that by doing so, not only is a hidden tax put into effect, which is especially pernicious upon all those that don't have an investment vehicle that is able to "earn" enough so as to keep what they have basically have so as to thereby maintain more or less the same value, but that because of this debasement there are going to be winners and losers within the currency game, of which, the biggest winners are always going to be those that are the in the know as to what is really going on and what is really going to happen.
Further to the point, sudden currency debasement, destabilizes societies in a manner in which, many of those that have labored hard, are susceptible to essentially having all that they have earned, becoming more or less worthless, thereby placing them in the unenviable position of being beholden to their government for their sustenance or the alternative of having to rise up against that government in the optimistic hope that such a revolution will thereby somehow make them whole and not further enchain them.
Again, virtually all of the "worth" of a given person, or institution, is measured in the coin of the realm, and when that coin becomes debased, this upsets the delicate balance between creditor and debtor, of which, those that are the creditors are typically those that are best positioned with that government, to not only to maintain their position, but to even improve upon it, when that government replaces the old currency unit with something new.
Of course, there is the issue of the fact that the American government is itself, a great debtor, but recognize that its debt is primarily held in the hands of its own citizens, thereby signifying that upon the backs of those citizens, and in particular, those without true representation, they will thereby create that new currency, which will burden at a significantly higher rate those that are its common laborers in a manner in which they will know their place. So then, such debauchery of the coin of the realm, will in the end, hurt not those who are well placed and in the know, but hurt greatly, those that have faithfully played by the rules, never suspecting that the game is rigged and that they are the losers to it.