Is not reading and meditating on the bible a "beautiful devotion" and are we limited to just that? Is it a sin to build a beautiful house of worship fit for a King? Is it a sin to use the most expensive materials available in that worship?
We don't worship the materials, we donate them for the honor of our Saviour and Redeemer. We also clothe and feed and educate the poor, who will always be with us.
It certainly can be. Do you recall in the OT when Israel failed to destroy the treasures taken from the nations they were killing off? They were going to use them in sacrifice and that seemed just as innocent and righteous as Catholic embellishments. But it wasn't. God finally says that He hated the sacrifices and offerings because they were offered amiss. Do you think that such things can be recreated right now?
God is certainly more pleased with faithfullness to His word than with building "beautiful places of worship".