It all depends, Jack, on what you mean by "far richer."

In other words, on the observer.

Reality is objective, but we appreciate it in different ways.

You believe science makes it richer; others may believe that the continued interest of their ancestors in them makes it richer, or the existence of a glorious afterlife, or the assurance that God thinks they're doing good works.

The Greeks thought the Olympians, unpredictable as they were, made it plenty rich.

The estimation of "richness" has nothing to do with "what's out there," everything to do with what's in one's own head.