benevolence vs remorselessness

benevolence

noun
  • Charitable kindness. 

  • A kind of forced loan or contribution levied by kings without legal authority, first so called under Edward IV in 1473. 

  • An altruistic gift or act. 

  • Disposition to do good. 

remorselessness

noun
  • the characteristic of lacking remorse 

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