The "culture of fraud and deception" is illegal. Acts of deception can range from fines to decades in jail. Wall Street firms make money from customers who choose to do business with them. Any hint of deception completely destroys any future business with that client, as well as many other clients. I know this might sound like a shock to some of you, but banks make their money by providing services to customers who choose to pay for those services. It's basic capitalism.