The reason you see so many people bearing the same title is because they are often family names. I believe others use them to indictate their membership of an order of varous sorts.
And then of course, you have people who choose a name merely to strengthen the role they take in life.
If you choose not to partake of the depth and history people weave into this land, fine. But don't take it out on the rest of us because we don't do things exactly as you do.
Written by my hand on the 28th of Springflower, in the year 1116.