Final answer:
The poster most likely idealizes the working class, aligning with the principles of socialist realism. This form of art was used as an ideological tool to portray the proletariat in a heroic manner, educating and promoting socialist values among the masses.
Step-by-step explanation:
The poster likely idealizes the working class, which is a hallmark of socialist realism. This form of art was developed in the Soviet Union during the 1930s, under Stalinist rule, to portray and promote socialist and communist ideology. Socialist realism was not merely a style, but a method that demanded a representation of reality that was tailored to suit the objectives of socialism, prominently featuring the proletariat or working class in a heroic light.
From the historical context provided, socialist realism focused on the revolutionary development of society and was used as an ideological tool to educate the working community in the spirit of socialism. It involved creating artworks that depicted life as it 'ought to be'—moving towards socialism—where workers are highlighted as the builders of the future. This emphasis on the working class and their glorification as strong, determined, and optimistic individuals aimed to instill a sense of pride and solidarity among the masses, in line with socialist values.