Steamlyannaya Hamonika (1968) depicts the isolation and brutalization of humans in modern bourgeois society. Although being broadly in line with other art-as-propaganda of the era, censors felt it could easily be read as a criticism of the party, leaving this subversive short as the only animated film to be banned in the Soviet Union.
Its funny, watching any of it it is super clear on its message. Capital destroys the harmonica and arrests the musician. The narc gets paid for ratting out someone who holds beauty. The masses are bound by time to destroy the machine that creates.
One coin creates familial conflict, while one guy literally baths in coins. Its so on the nose, you have to purposefully misread it to miss the point.