honorable vs salt of the earth

honorable

noun
  • A politician or other person who bears the title of "honorable". 

adj
  • Worthy of respect; respectable. 

  • A courtesy title, given in Britain and the Commonwealth to a cabinet minister, minister of state, or senator, and in the United States to the president, vice president, congresspeople, state governors and legislators, and mayors. 

salt of the earth

noun
  • A decent, dependable, unpretentious person. 

How often have the words honorable and salt of the earth occurred in a corpus of books? (source: Google Ngram Viewer )