I agree with you that the global elites tend to control world economies through their influential status. Whereas you mentioned only the political and economic aspects of the global elites; let me add that they also control religion and global academics. Their unlimited wealth allows them to influence the curriculum to ensure that the workforces would meet their needs besides trying to justify their wealth through funded studies that change perceptions. Control of religion gives the global elites leverage over the rest giving them an opportunity to modify the ways of life of the masses in an almost cultic manner. For instance, the global elites come up with goods and services that they market on a worldwide scale that would influence the way of life of the people. Besides, the global elite can control critical aspects of the economy as the major Banks in the world. In this regard, they can control the money circulation and the economy of a whole nation, and by extension the globe. For example, the Federal Reserve Bank (“The Globalist,” n.d).
I also concur with you on the upper-class elite that comprises on the massive inheritance of wealth placing them in the top ranks of the society. The upper-class elite may have relatively lower influence than the global elites but have similar powers. The extreme need to begin new world order has seen the global elite and the upper-class elite controlling foreign policies, court systems, education, food and natural resources, politicians, and most importantly media, natural resources, and religion. With unlimited authority on these social aspects, it makes it easy to influence all other ways of life of the communities in the world.
Reference
The Globalist (n.d). Retrieved on April 2, 2016 from http://theglobalelite.org/globalists/#