Besides, demanding any honourific is lame - proof of this is in the honorifics for politicians. :)
"To an unfamiliar Northerner one of very interesting and somewhat amusing phases of conditions down here is the panic fear displayed over the use of "Mr." or "Mrs." No Negro is ever called Mr. or Mrs. by a white man: that would indicate social equality. A Southern white man told me with humor of his difficulties:
"Now I admire Booker Washington. I regard him as a great man, and yet I couldn't call him Mr. Washington. We were all in a quandary until a doctor's degree was given him. That saved our lives! We all call him 'Dr.' Washington now."
Sure enough! I don't thing I have heard him called Mr. Washington since I came down here. It is always "Dr.' or just 'Booker.' They are ready to call a Negro 'Professor' or 'Bishop' or 'The Reverend' - but not 'Mr.'
https://books.google.com/books?id=QsLQAAAAMAAJ&pg=PA148&lpg=...
We don't normally call Ms Merkel "Frau Bundeskanzlerin" and we don't normally call MPs "Herr Bundestagsabgeordneter" or "Frau Bundestagsabgeordnete" (although you might address them this way in a formal letter, maybe).
Maybe this has something to do with abolishing royal/aristocratic titles in the aftermath of WW1 -- it certainly feels anachronistic and oldfashioned to me.
"Please, Reverend, call me 'Mr. President'. It's not that I need you to stroke my ego, it's that in this job I have to make some difficult choices that can be uncomfortable to me personally, and I would like you to emphasize the office rather than the person holding it"
As a Scandinavian, all honorifics, including "Mr." etc. sound weird, but that was a great explanation for why some people would like one.
http://www.collinsdictionary.com/spellcheck/english?q=honour...
Does that actually work? Will one get a better table?
Also, even if you are Richard Stallman or Maya Angelou, demanding to be called "Dr" due to an honorary degree is just lame.