An ethical person - like a politician, banker or lawyer - may know right from wrong, but unlike many of them, a moral person lives it. An Americanist first already knows that.
Bankers and their government agents will always act in their own best interests. Any residual benefit flowing down to the citizens by happenstance will just be litter.
Muckety recently released this map showing the close relationship between the US Treasury Department and the Council on Foreign Relations (CFR) both thru individuals and corporations. (Map display tools are aligned vertically in the left sidebar of image)
Here is another similar Muckety map showing corporate connections to CFR.