self-seeking vs thoughtlessness

self-seeking

noun
  • The selfish promotion of one's own interests. 

adj
  • Mindful of, or promoting, only one's own interests. 

  • That searches for a target automatically. 

thoughtlessness

noun
  • heedless disregard for the consequences of one's actions 

  • disregard for other's feelings 

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