According to a conflict perspective understanding of stratification, the class that a cardiologist who worked for a hospital (not owned her own practice) would belong to is proletariat.
Proletariat Class
The bourgeoisies and the proletarians are two distinct socioeconomic classes, according to Marx. Proletarians are members of the working classes who are employed by the bourgeoisie, who are capitalists who own the means of production. The socioeconomic class known as the proletariat consists of people who work for a living and whose only real asset is their labor force (their capacity to work). A person who belongs to this class is a proletariat.
Those who perform physical labor or industrial work and are compensated through wage or salary contracts are considered to be members of the working class. Blue-collar jobs and the majority of pink-collar jobs are among the working-class professions.
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