dignitary vs muckety muck

dignitary

noun
  • An important or influential person, or one of high rank or position. 

adj
  • Relating to dignity. 

muckety muck

noun
  • A high muckamuck; a person (especially self-important) in a position of power, authority, or status. 

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