injustice vs rectitude

injustice

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

  • Absence of justice; unjustice. 

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

rectitude

noun
  • Conformity to the rules prescribed for moral conduct; (moral) uprightness, virtue. 

  • Straightness; the state or quality of having a constant direction and not being crooked or bent. 

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