Add this to your conspiracy.

Intentional monetary inflation creates a value gradient, wherein the first spend of a new dollar can buy more than the second spend, and so on, until the knowledge that the new dollar is in circulation has normalized.

Now, what happens when you always spend new dollars into circulation through the same entity, but then remove old dollars at the same rate from those who only acquire dollars after they have been value-normalized? If you are an entity that can create new money, and destroy old money, you effectively get a discount on everything you buy. To a lesser extent, the same applies to anyone that can hoard a large enough quantity of money. You can withdraw a quantity from circulation, wait for prices to normalize for the new money supply, then buy at a lower price from hoarded money until people realize the circulating supply is now larger and raise their prices.

The counter to this is to restrict fiat money creation and discourage hoarding. Bitcoin already has a fixed-in-stone schedule for the creation of its money supply, but there is no way to stop someone from accumulating a large quantity, and then using the size of that hoard to act like a central bank.