In what ways were the government of king Louis XVI and Emperor Napoleon different? How did these differences effect society?

Compared to Napoleon, King Louis XVI was a newbie.

Napoleon was an ambitious man, an awesome general who rose through the ranks to become a great Emperor. He gave France a strong empire, a fair code of laws. He defeated every army that was against him. He had clever tactics and strategies. He introduced ideals of revolution to Europe, which would be the center of conflict throughout the 19th century.

In the contrary, Louis was a common, mediocre monarch, born in a rich family with lots of priviledges. He drove his kingdom into financial debt setting off the French revolution.