bad manners vs dignity

bad manners

noun
  • The treatment of other people in an impolite or discourteous way, or incorrect behaviour in public. 

dignity

noun
  • One holding high rank; a dignitary. 

  • High office, rank, or station. 

  • Decorum, formality, stateliness. 

  • The male genitalia. 

  • The state of being dignified or worthy of esteem: elevation of mind or character. 

How often have the words bad manners and dignity occurred in a corpus of books? (source: Google Ngram Viewer )