Marx, in fact, considered the thought of purity of means of secondary importance. Keynes said, "Right now we have to increase prosperity. That is why at the moment we have no time to think about non-violence, moral values, etc." He said, “Economics is a science". As a science, it was not concerned with morality or immorality. To reckon with them is the concern of ethics, the science of morality. The subject of the science of morality cannot be made the subject of economics. As a result, he never agreed to give importance to morality, non-violence, and purity of means or any such aspect.