Blaming companies for using legal means to make money is like blaming animals for having natural urges. It is the job of a good government to regulate companies and industry. They don't tend to regulate themselves well - a strong and fair regulatory environment is important.
I don't feel like occupying Wall Street, I would rather ask the legislatures in the state capitals and Washington to keep up with stronger and sensible regulations. That way the corporations can produce, hire people, pay for employee benefits, and contribute to the economy without cutting corners in ethics, safety, or overly speculative investments.