And Napoleon never tried to have an enemy head of state assassinated. The Bourbons, backed by the British government were guilty of that at least twice.
No assassination attempts? Perhaps, but, N certainly executed, by personal order, the Tyrollean head of state, Andreas Hofer, and also ordered the Bourbon Duke of Enghien's murder.
Of course, some, including you, view these as "good and justified" murders on N's part, but, they were murder never the less.