expediency vs good faith

expediency

noun
  • The quality of being fit or suitable to effect some desired end or the purpose intended; suitability for particular circumstance or situation. 

  • An expedient. 

  • Pursuit of the course of action that brings the desired effect even if it is unjust or unprincipled. 

good faith

noun
  • Good, honest intentions, even if producing unfortunate results. 

adj
  • Having or done with good, honest intentions; well-intentioned. 

  • Presuming that all parties to a discussion are honest and intend to act in a fair and appropriate manner. 

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