arrogance vs self-importance

arrogance

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

self-importance

noun
  • An exaggerated estimate of one's own importance or merit, especially as manifested by the conduct or manners; self-conceit. 

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