Scholars have long debated what is the role of inequalities in organised violence, but the causal mechanisms remain unclear. I argue that mainstream approaches (e.g. deviance, subcultures, grievances, rational choice and Marxism) fall short because they overlook that organised violence is an intensive form of work. These perspectives often exoticise individuals involved in violence for profit or political purposes. Violence is not a deviant feature of social life but an integral part of collective action. By applying occupational lenses, I position those engaged in violence as a specialised class of manual workers recruited in the protection labour market. Scholars can acknowledge the occupational stratification observed before in research about organised violence by understanding violence specialists as workers. This essay explores how the sociology of work can enhance our understanding of inequality reproduction within criminal organisations, guerrillas, armies, police forces, mercenaries and private military companies.