respectable vs salt of the earth

respectable

noun
  • A person who is respectable. 

adj
  • Deserving respect. 

  • Decent; satisfactory. 

  • Moderately well-to-do. 

salt of the earth

noun
  • A decent, dependable, unpretentious person. 

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