exemplary vs salt of the earth

exemplary

adj
  • Serving as a warning; monitory. 

  • Providing an example or illustration. 

  • Deserving honour, respect and admiration. 

  • Of such high quality that it should serve as an example to be imitated; ideal, perfect. 

salt of the earth

noun
  • A decent, dependable, unpretentious person. 

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