for the sake of vs in respect of

for the sake of

prep

  • Because of; out of consideration for; in the interest of. 

in respect of

prep

  • On account of; by reason of; because of. 

  • Regarding; concerning; pertaining to; with reference to. 

How often have the words for the sake of and in respect of occurred in a corpus of books? (source: Google Ngram Viewer )