No, that's just paranoid. If they had been invented in the last 40 years, you might be onto something.
Yes, but it's funny. I bet somebody with a lot more time on their hands, (and talent,) than I have could develop a conspiracy theory with Knights Templars and Builderbergers in order to subvert the Magna Carta...etc. Probably could write a best selling book like the DaVinci Code or something.