ethics in legal business

Do some online research and tell me about a situation in which a business has done something legal, but which you believe is unethical. Why do you believe the business was acting unethically? What would you recommend the business do to change its actions to be both ethical and legal? Pick 2 t and tell me whether the company was following the ethical principles of each theory, such as utilitarianism, the categorical imperative, duty based ethics, rights based ethics, etc.