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Rankism

Rankism is "abusive, discriminatory, or exploitative behavior towards people because of their rank in a particular hierarchy". Rank-based abuse underlies many other phenomena such as bullying, racism, hazing, ageism, sexism, and homophobia. The term "rankism" was coined by physicist, educator, and citizen diplomat Robert W. Fuller.

Wiktionary

rankism

n. abuse, discrimination, or exploitation based on rank