Just to clarify my post. No nappy did not actually kill any kings, and his policies did stray quite a bite from the ideals of the revolution.
But he was seen as this upstart representing every thing bad from the revolution, and the empier (the French on) was quite liberal if we compare it with the absolutist regimes that is the norm in Europe at the time.
The man crowned himself emperor, and we can argue about the reasons for him doing so, covertly kidnapped and executed a noble, threw the current power balance and social order on the continent out of balance, deposed kings, was a ogre (and very short at the same time, even if his hight was ca the French average at the time).
I am talking about how he was seen, and not what actually was true.