This paper aims at exploring the mentality of the people which was shaped by the capitalist doctrine and how this mental state led the characters to take reckless and unethical decisions. The Marxist analysis is used to unravel multiple motivations and reasons behind those decisions, so basically, this study owes a debt to Karl Marx's class struggle and identification. The attitudes of the people are observed and looked at carefully through the Marxist lens, and the impact and failure of capitalism are identified. This research is organized on the basis of sharp textual and interpretative analysis of the text All My Sons by Arthur Miller under the umbrella of qualitative research method and the curious quest of the research questions besides the objectives to be explored under the lens of Marxist concepts; Class Conflict, Oppression, Exploitation and Commodification. The paper reveals how class conflict leads to the oppression of the masses.