incorruptible vs principled

incorruptible

adj
  • Incapable of being bribed or morally corrupted; inflexibly just and upright. 

  • Not subject to corruption or decay. 

noun
  • A person whose body does not decompose after death, a sign of holiness. 

  • One of an ancient religious sect of Alexandria, whose adherents believed that the body of Christ was incorruptible, and that he suffered hunger, thirst, and pain only in appearance. 

principled

adj
  • strongly adhering to, or heedful of, guiding beliefs or moral rules 

  • Based on, having, or manifesting principles 

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