The sectors of diamonds, gold, copper, zinc, uranium, telecommunication, media, food, and arms are controlled by the Wall Street cartel. These are the monopolies, we are talking about.
The banks are not really after the money, as we can see, because they can just produce or print the money themselves. For the bank, it is a means of power in order to acquire goods and services. Socialism and our version of capitalism are like two sides of the same coin. This is where the monopolies are.