In addition to judeo-christian principles, american government was influenced by principles first used in ancient greece and in

Rome

Explanation:

The American government is a government that has been formed on the principles of two religions and two ancient governments. The Judaism and the Christianity gave the primary principles for the formation of the American government, while the rest of the principles mostly came from the governments of ancient Greece (mostly Athens) and Rome. The combination of several different principles led to the extraction and combination of the best things of all four, thus creating a very good and rightful government. One of the very important traits of the American government is the bicameral system, something originating from ancient times, just adjusted for modern times, and this is a system that doesn't allow one political party to gain to much power and abuse it, thus protecting the interest of the people.

i believe the answer is: returns on investments, no wages

people who belong in upper class society would most likely get there by obtaining multiple source of income, which a certain percentage of ownership for businesses. since most of them are job creator, they would most likely get their money from profit, not wages.