little man

An ordinary person who is not wealthy, famous, or powerful — used to refer to such people in general. a politician who portrays himself as a friend of the little man. (britanica)

“I remember walkin ' ' round the court square sidewalk Lookin ' in windows at things I couldn't want There's Johnson's Hardware and Morgan's Jewelry And the ol ' Lee King's Apothecary They were the little man The little man“ (Little man, Allan Jackson).