It's quite simple actually. A judge wouldn't call himself "the honourable" Judge Smith
It's honorific. Just as you won't use -san after your own name...
That said, I have nothing against titles, as long as they are used in a proper, sober manner. Not to invoke a false sense of importance. I have no trouble of calling my teachers sensei, shihan or whatever is called for in a particular setting, as I respect them both as human beings and as martial artists.
Just don't introduce yourself as "Sensei John" to me, or I'll bend over laughing