The attitude in the early 19 century was somewhat different. No one considered these wars as wars "against France", I mean against the French people. These were the wars against Napoleon, and earlier the wars against the revolutionary government. So there was no notion that "France should be punished". Many French emigres were on the coalition side.
It is also somewhat questionable, who started these wars, if you include the revolutionary wars. And the notion of the "war of aggression" is also a 20s century notion. Starting a war was not considered a crime in the early 19 century. (The revolutionary war was started by the Coalition because the King was executed, and the Queen, and many other people. Revolutionary government was considered cruel and illegitimate. Not the French people).
In fact the victors of the Napoleonic wars are considered very wise by many people, because their peace arrangement made in 1815 lead to a very long period of peace in Europe. Unlike the peace arrangement 100 years later, when Germany (the German people!) was punished and this led to wide support of the Nazi and to WWII.
EDIT. Moral: one should not punish the people (no matter how many cruelties were committed by them) but the individual war criminals.