materialist vs petty bourgeoisie

materialist

noun
  • Someone who is materialistic, concerned only with material possessions. 

  • A follower or proponent of philosophical materialism. 

adj
  • Having features typical of philosophical materialism. 

petty bourgeoisie

noun
  • A social class of that bourgeoisie that typically works alongside their employees if they have any, exemplified by shopkeepers and professionals. 

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