Merely that it looks rich is no justification for the use of ornament. Simplicity is a consequence, never a cause.
“Repose is a quality of architecture essential to harmony with nature and humanity. When man wants to rest, he puts his body in a position where he no longer has to exert effort to resist gravitational force. He is then in a state of repose, a narural condition if he is not in motion.
The landscape has this sense of tranquillity. Simplicity and repose give architecture grace and concord.