manager vs peon

manager

noun
  • A person whose job is to manage something, such as a business, a restaurant, or a sports team. 

  • An administrator, for a singer or group. 

  • A window or application whose purpose is to give the user the control over some aspect of the system. 

  • The head coach. 

peon

noun
  • A person of low rank or importance. 

  • A messenger, foot soldier, or native policeman. 

  • A lowly person; a peasant or serf; a labourer who is obliged to do menial work. 

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