But the title of emperor was also used in the middle ages, and is still used, in a loose and vague sense, without any ecclesiastical connotation or hint of connexion with Rome (the two attributes which should properly distinguish an emperor), and merely in order to designate a non-European ruler with a large extent of territory.
Thus, in Germany, with the decay of the empire the title "prince " received a sovereign connotation, though it ranks, as in France, below that of "duke."
This use of the word "prince" - which has in England so lofty a connotation - to translate foreign titles of such varying importance and significance naturally leads to a good deal of confusion in the public mind.
No negative connotation was intended by using the word "short."
The word has different connotations in different contexts.
To avoid the connotation of correctness, I would use the word principles rather than rules.
The history of the authority shows it to be incapable of policing cloning, which could have sinister connotations.