I would have to question if those responsible for the mistreatment of people and the distruction of the earth in order to attain wealth consider themselves following true christian ethics.
Many in the US do. Some of the Fundamentalist sects claim that God rewards "good Christians" with wealth and the the destruction of the Earth does not matter. God gave the earth to Humans to use and it will all be wiped out and remade in a few years when Jesus comes back -- so the damage done doesn't matter.