Just a personal feeling about what we do for "bucks".
I’ve never been to Mt. Rushmore. It does seem like something the public would not support any more. A product of its time.
In everything to do with the environment, though, it seems to me like we can never really get “even”, much less get ahead. Humans leave ugly marks on the earth, just like dogs poop on people’s lawns. It’s our fallen nature. We can do our best to minimize the mess, but we are not capable of redeeming ourselves. We need God for that. And, lucky thing, he has designed a universe where sunlight can disinfect things, and tree roots can bring down ugly structures, given enough time.