Possible, i guess, but they certainly aren't the only ones. I just don't buy into the Wizard of Oz theory. No supergroup, even the bilderberg group, controls the destiny of the world, IMHO.
There is no indisputable evidence to support that notion. The corporation money in our system certainly has an effect, but even then there are corporate donators that are at odds with each other. No magic person or group with all the marionette strings.. thus politics are still relevant.