self-conceit vs self-serving

self-conceit

noun
  • Conceit of oneself; an overweening opinion of one's own powers or endowments; vanity. 

self-serving

adj
  • Showing interest only in oneself (pursuing self-interest to the exclusion of other goals). 

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