The civil-industrialized society constructed by modern abstract systems (technological, expert and knowledge systems) is encountering great challenge. The civil risks, such as global ecological disasters, disputes on ethics, health risks and issues of social inequality, derived from the society, reversely lash and corrupt the self-legitimacy of the society and shake the relations of reliance of modern people. This article proceeds from the abstract systems formed by knowledge, technology and experts, then, it critically discusses the knowledge and technological controlled problems which they are based on and continuously points out the technological risk problems derived from scientific uncertainty. Meanwhile, from the aspect of the influences of the risk blindness of various unaware actors, this article analyses the lashes of the legitimacy of scientific and technological system operations and the distrust and disputes on science of the public. Eventually, it initially proposes the development of new knowledge and operative guidelines, and the establishment of the platform and mechanism of the communication between technology and the society to provide the democratic foundation of corporate-thinking for the environment of increasingly widen knowledge gap and the disputes on social ethics.