The main motive for imperialism was to obtain and control a supply of raw materials for industries. This meant that a weaker country with abundant natural resources would be colonised. Imperialists were often brutal in the way they treated the indigenous population.
Not only does it give a sense of unity to these nations, but it is also beneficial to the people as well because they do not have to worry about exchange rates when traveling to other countries with the same currency.
Congress established the Rural Electrification Administration which loaned money to electric utilities to build power lines, bringing electricity to isolated rural areas.