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Sociologist Helmut Schoeck similarly considered envy the motive of collective efforts by society to reduce the disproportionate gains of successful individuals through moral or legal constraints , with altruism being primary among these .
 Helmut Schoeck
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
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Text: {0} 
Answer:
 Helmut Schoeck