probity vs rightness

probity

noun
  • Integrity, especially of the quality of having strong moral principles; decency and honesty. 

rightness

noun
  • The characteristic of being right; correctness. 

  • The result or product of being right; something correct. 

  • The property of being on, or moving toward, the right. 

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