The purpose of the economic system is to allocate it's scarce resources. Since the resources are scarce (limited) something must be sacrificed to obtain something else. That is why nothing is free (there is no such thing as a free lunch). To use a resource for one thing is to not use it for another.
The most popular way of "encouraging" another nation to change its government is by staging a coup and instilling an American-backed leader to lead the country.
