altruism vs arrogance

altruism

noun
  • Action or behaviour that benefits another or others at some cost to the performer. 

  • Regard for others, both natural and moral without regard for oneself; devotion to the interests of others; brotherly kindness. 

arrogance

noun
  • The state of being arrogant; a type of extreme or foolish pride in which someone feels much superior to another. 

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