despite vs on account of

despite

prep
  • In spite of, notwithstanding. 

noun
  • Evil feeling; malice, spite, annoyance. 

on account of

prep
  • Because of, due to, owing to. 

  • On behalf of the (monetary) account of; (idiomatic, originally figurative) for the sake of. 

conj
  • On account of the fact that: because, since. 

How often have the words despite and on account of occurred in a corpus of books? (source: Google Ngram Viewer )