look down on vs look up to

look down on

verb
  • To regard or treat as inferior. 

  • To view [people or events on Earth] from the vantage point of the afterlife (originally, Heaven) 

look up to

verb
  • To show respect or admiration for (someone); to see (someone) as a role model. 

How often have the words look down on and look up to occurred in a corpus of books? (source: Google Ngram Viewer )