You mention the art on the walls and the koi pond as if they are spurious examples of unnecessary spending, when many studies point to the great value in such environmental factors in healing.
And I doubt hospitals are debuting rediscovered Van Gogh works. Buying affordable works from local artists can fill a massive hospital for well under a million.
For those lacking understanding of the value of art in this context here is a good recent piece of research with many useful references: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5328392/