President Roosevelt's New Deal created programs that were meant to help the United States pry itself loose from the grips of the Great Depression, mainly by providing government programs like the WPA, which gave many people employment opportunities.
Because the American people where scared that if they gave people that much power over them, like there would be in a strong central government, then the same tyranny that happened with King George and Great Britain, would happen again in their own government.
I believe the answer would be opportunity cost. the opportunity cost is the cost to create an item which can result an increase in the price to ensure they make profit
The ancient Romans used their engineering skills to build aqueducts, bridges, roads, domed structures, the hypocaust heating system and any other building projects they undertook.
Hope this helps!