I do not know of any men who have not at sometime been called Sir or Mister. It is a form of respect. Times do change and this form of address is not often used now. People who are 50 and over wil use such terms, but then they were brought up to be respectful to those who warrented such a title. Perhaps t is done in schools and the workplace. To get back to your question I would say the man has been shown little respect for his position in life, which is most regretable. He would be a most unfortunate man.