Pollution disputes require the intellectual support of Technocrats. Technocrats also make rational choices in specific contexts. In some cases, Technocrats deviated from social expectations and do default behaviors, causing serious environmental and social problems. According to the degree of default, default behaviors can be divided into three categories: elasticity choice, hidden view and intentional distortion. It shows that the essence of elasticity choice is the economic behavior with violating the professional ethics, and hidden view is the collective silence on the focus of environmental disputes, and intentional distortion is the collusion with political economic elites. On the basis of above analysis, this paper provides such advices: establish the industry self-discipline mechanism for the elasticity choice, establish the flexible incentive mechanism for the hidden view, and establish the rigid corrective mechanism for intentional distortion. In the era of the project system, eliminating the default behavior of technocrats requires systematic integration and social integration.