First of all; there are so many members of congress, and the vice president, and the sec. of state, and etc etc all those guys. This makes it so that even if the President is a guy like us, his advisors may still disagree or congress may still vote against his peaceful ideas.
My point, there is so many guys in higher powers that it is basically IMPOSSIBLE for them to all be "nice".
Now, under a dictatorship: If Saddam was "nice", AND he had 100% control of his country, then THAT would be your hypothetical country.
EDIT: I double posted because while I was writing mine he had posted his.