I don't like conspiracy theories; you're forced to make assumptions and pass them along as if they were true. We know certain facts, but the reasons behind those facts aren't as important as the actuality of the situation, nor will we ever know those reasons for certain until Helicopter Ben or likewise actually says something on the matter.
We know that the central government is in complete control over their own currency. We know that they've put themselves into debt and, despite claims otherwise, have not shown intention to pull out of this debt; there will be a moment in the future when tax revenue can no longer pay even for the interest owed on their debts. We know that baseless currencies, backed only by promises, coupled with printing--even just to replace old, tattered money--will cause inflation, which steadily cheapens the money over time; we also know that massive amounts of printing will cause massive amounts of inflation, which can be considered another type of tax, as it transfers the wealth (which isn't changing; only the amount of dollars weighed against it is changing) from the individuals to government; remember, the individual can ask the government to stop printing so much, but government is in no position to take orders if they feel their cause is worthy.
Since the currency is out of the hands of the people and in the hands of the rulers, the rulers will, as we can all imagine, take advantage of this unique position in their own favor, at the expense of you and their own nation; as the saying goes, power corrupts; absolute power corrupts absolutely.
con·spire [kuhn-spahyuhr]
verb (used without object)
1.
to agree together, especially secretly, to do something wrong, evil, or illegal.
If we can consider government as a group of people unrelated to us and our needs, consider ignoring the constitution an illegal act (hard to do since government invents law and can make itself legal in its every action), or in the very least agree that deliberately cheapening a currency and acting irrationally in a manner that would negatively impact hundreds of millions of lives an act of evil, and acknowledge that these actions often happen without our consent and sometimes without our knowing, then there is no theory; yes, the government is actively conspiring, and has conspired, against its citizens, through its currency, and otherwise. All one could hope to do is rationalize the conspiracy, I suppose in an "it's a necessary evil" fashion.
Also, I wouldn't trust anything which offers information for a price. You can find anything you need for free online.