Eh, I think you're pushing a little, Lush. The idea that people are more important than the works of ones hands permeates many religions, including my own, not just Christianity. Turgon's flaw was being caught up too much in a place and a city; Gondolin could be rebuilt, moved, changed, torn down, but as long as it's people survived they could start anew. He didn't place faith in that, and was too attached to one place; if you stay in one place, you can eventually be found. You're confined in a small space--Middle Earth. Eventually, although it may take several thousand years, Melkor would have found Gondolin by the virtue of simply having looked everywhere else.
^^
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