People were touchy about honour and respect and due acknowledgment of rank, so address was important. Also, it was still a time when people put real effort into speech - political speeches and sermons could go for hours (and people listened!), rhetoric was taught and had an effect, a reputation for wit could take you a long way, and there were venues (eg Parisian salons) where fluent argument carried great social cachet. So yes, people did speak like that.