The vast majority of thinkers, writers, and so on only have a limited repertoire of ideas and even phrases that they recycle again and again. Zizek is a good case in point of someone with a schtick. He only has so many takes on any issue.
Graham Greene writes the same book again and again (spies, divorce, affairs, Catholicism, am I a commie?, does God exist?, belief crisis, exotic location, guilt, suicide). You read him for his style, which takes you to “Greeneland” whether it’s in Haiti or Vietnam or Gold Coast.