As a black Version player, I was very disappointed with Black City as well. I go through the game seeing all this stuff about "Co-exist with nature and technology, accept those with ideals different from your own, work together for greater good, don't judge someone as evil for where they live," etc. etc. And when the highly advanced Black Version of opulid city appeared without any condemnation for modern tech or the city lifestyle, I thought "Amazing! A game that has a distinction between nature and technology, but doesn't say Technology or civilization is evil and polluting! How refreshing!"
Then I step into Black City, and find it filled with more transparently evil businessmen than most of the villain teams. Cue disgusted sighs.