There are needs, and there are wants.

A toothpick sculpture?  Not necessary for San Francisco to demonstrate its greatness (as might have been an underlying objective of the commission).  Not sufficient for that purpose either.

Fun?  Not the slightest doubt or hesitation.

This sculpture does something more than fun.  It illustrates patience as a necessary condition for the modern world, such as it is.  There is a need for careful planning, sense of humor, and ensuring that we do not lose or marbles (or ping pong balls) in the process of getting through modern life.

Is this sufficient?