The early sociologist who argued that deviance might be functional for society was

Emile Durkheim .

Explanation:

Émile Durkheim believed that deviance is a necessary part of a successful society. One way deviance is functional, he argued, is that it challenges people’s present views (1893). For instance, when black students across the United States participated in sit-ins during the civil rights movement, they challenged society’s notions of segregation. Moreover, Durkheim noted, when deviance is punished, it reaffirms currently held social norms, which also contributes to society (1893). Seeing a student given detention for skipping class reminds other high schoolers that playing hooky isn’t allowed and that they, too, could get detention.

answer; having the power of reprieve means being able to release people from punishment;