Probably that those in the cities responsible for culture generation have become lost in the behavioral sink of their utopia that they are no longer capable of creativity.

One purpose of the culture generation industry may be to integrate newer groups (like the Irish) into the perception of the whole.

Because they can no longer create something new for a group being integrated, they steal from a group they have previously given the thing to. Cultural Indian-givers.

Ivory tower city scum are trapped and growing like mold on bathtub drain, unable or unwilling to escape the pull of the current and without awareness that most water falling from the showerhead is relatively clean before it interacts with the crusty algae surrounding their pit of despair into which they throw their human sacrifices.