Yes, his title and how it connects him to his master seemed a great source of pride for him. [Devotion ended up being pretty much their entire conversation, back when they met.]
Whilst I have met no one else calling himself a "dragon", I shall be sure to greet him if given the opportunity. [If only because it's polite to greet people - Sebastian has no particular investment in this odd little group.] Mr Kija spoke most reverently of Her Highness as well, although I have yet to meet her too.