No, corporations are not bad for human rights, because they do far more to help human rights than hurt them. Corporations make things that people want to buy. When people have jobs, provided by corporations, they can spend the money on charities that help people. Corporations make people wealthy, and for the most part, they do not abuse their workers.
No, the existence of corporations is not bad for human rights, because the corporations are accountable to the public for their actions. The government does not actually answer to its people. If it starts a coporation and abuses human rights, there is no recourse for the people hurt, and no way for the public to demand that the corporation be put out of business.