One great example is the "One World Currency" (OWC) theory. This one has prophecy, religion, economics, and fear all rolled up in a tight little ball, and practically no one sees the obvious: we are being manipulated into hating the one thing that could save us.
Let's look at the elements first. At the top of the list is 'currency'. A currency is nothing more than some object, commodity or symbol-laden piece of paper to which everyone gives a value. All a currency allows me to do is conduct business without barter. In other words, I can make and sell shoes to the candlestick maker without having to take candles in exchange. He can give me come currency that I can use to buy things I need, including some candles if necessary. If the currency is accepted in foreign countries, then I have an international currency that expands my options to buy and sell things.
In this regard, the US dollar, gold and silver, and increasingly the renmimbi are global currencies. Gold has been for thousands of years and is accepted by most people everywhere. It's perfect as a currency: practically indestructible, doesn't corrode, weighs the same everywhere, and has a reasonably limited supply. But it is heavy, and so paper currencies came into being, of which the US dollar is the all-time champion of magic paper.
Now you throw in some prophesy. Let's see...how about the Revelation of St. John? You tell everyone for a century or two that the "mark of the beast" means a one-world currency. This immediately gets all the Bible thumpers on your side fighting the one-world currency. None of them ever stop to think that gold has been a world currency for thousands of years. This gets so ingrained in the culture that even the not-so-religious start thinking one-world currency is bad. It's not the only example, but it's a prime one.
Now, you're an international bankster. You are completely useless to society. You produce nothing and provide no real service that people really need. All you do is find creative ways to insert yourself into the middle of every commercial transaction and take money for it. Sweet gig if you can get it.
One of your biggest and oldest scams that has reaped millions in cash for doing nothing is foreign exchange, or 'forex'. You've been at it for years. You had all the Jews exchanging money for sacrifical animals at the Temple and taking a profit for no real product or service. It was so bad that even Jesus lost his temper and started whipping the lot of you.
Now, does it serve your purposes to have a one-world currency, or as many different ones as possible? If there's a single global currency (gold for instance), how would you collect your fees for exchanging money, when there is no need for exchange? If this wasn't such a lucrative business, then why are there 75 exchange booths at the international gates of any airport?
To play the game, you first start spreading your 'custom' interpretation of the Bible prophesy to get everyone all on alert against one-world currencies. Then you get central banks installed in as many countries as possible and start pulling gold out of circulation and replace it with magic paper. You call gold "the yellow dog" and ridicule those who buy and/or horde it. You beat down the price to make folks think it's pretty worthless as currency.
Finally, you start playing with the relative values of all the different currencies so that you are not only taking profits from exchanging currencies every time someone crosses a border, but you are using the differential exchange rates as a means of cashing in, as well. Thus, you throw all your money into the euro and the relative price starts to climb. When you hit your targe value, to turn it back into dollars (or whatever) and pocket the difference.
One-world currency is the last thing international bankers want, and they have played with our perceptions and beliefs for a century or more to ensure that you reject the one-world currency idea that would literally break their backs by ending one of their oldest and richest scams.
It's all a huge rip-off and the whole 'conspiracy theory' was manufactured to keep us sheep from looking at the truth. After all, if the banksters could get us to actively fight against the one thing that coudl really harm them, then think of all the time and effort we would save them!
It's all kinda like the Dread Pirate Roberts scam in The Princess Bride:
Well, Roberts had grown so rich, he wanted to retire. So he took me to his cabin and told me his secret: "I am not the Dread Pirate Roberts," he said. "My name is Ryan. I inherited this ship from the previous Dread Pirate Roberts, just as you will inherit it from me. The man I inherited it from was not the real Dread Pirate Roberts, either. His name was Cummerbund. The real Roberts has been retired fifteen years and living like a king in Patagonia." Then he explained the name was the important thing for inspiring the necessary fear. You see, no one would surrender to the Dread Pirate Westley. So we sailed ashore, took on an entirely new crew and he stayed aboard for awhile as first mate, all the time calling me Roberts. Once the crew believed, he left the ship and I have been Roberts ever since. Except, now that we're together, I shall retire and hand the name over to someone else. Is everything clear to you?
And that's how the game is played.