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A narrative on the transformations of the society from the 1960s to this day, and, in particular how change, promoted as a cardinal value of economic development, modified the heart of human activities, endangering individuals’ psychic equilibrium and destroying social cohesion. As early as 1992, in direct line with the research conducted by Renaud Sainsaulieu introducing subjectivity at work in the profession identity, the author draws on theories from the sociology of the firm to create her profession of practicing sociologist. She addresses the necessity to remain in direct contact with the field while staying true to the principles governing the social system model. Along the evolutions of the socio-economic context, she notes the adaptations required from the sociological diagnostic method, and more particularly when confronted to the present-day issues of work-related stress. Putting human living work back into the centre of the understanding of the social systems thus becomes essential in order to facilitate the empowerment of the actors and to that end draw on other social sciences fields in particular philosophy and work psychodynamic.