complacency vs self-satisfaction

complacency

noun
  • A feeling of contented self-satisfaction, especially when unaware of upcoming trouble. 

  • Passivity as a result of contentment with the current situation. 

self-satisfaction

noun
  • A feeling of fulfillment or contentment with respect to one's own accomplishments or situation. 

  • The state of being excessively pleased with oneself; smugness. 

How often have the words complacency and self-satisfaction occurred in a corpus of books? (source: Google Ngram Viewer )