altruism vs lavishness

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. 

lavishness

noun
  • The state or characteristic of being lavish. 

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