Corporations are a tool just like a hammer or a knife. Any tool can be used for good or ill intent just as a hammer can be used to build things for people or bludgeon people. The root of the actual "evil" you are observing is the fiat money monopoly that enables reckless speculative behavior and regulatory and judicial capture of the government and courts by conglomerates. Without these government granted privileges corporations would always be held legally accountable for reckless and immoral behavior.