self-importance vs snobbishness

self-importance

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

snobbishness

noun
  • The state or quality of being snobbish. 

  • The result or product of being snobbish. 

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