decency vs injustice

decency

noun
  • That which is proper or becoming. 

  • The quality of being decent; propriety. 

injustice

noun
  • Violation of the rights of another person or people. 

  • Absence of justice; unjustice. 

  • Unfairness; the state of not being fair or just. 

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