How is one group or ideology privileged over another in this text? (race & ethnicity in heart of darkness.)

RACE & ETHNICITY in
Heart of Darkness
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At the turn of the 19th century European imperialism, even though racist and corrupt, was viewed as "a crusade worthy of this century of progress" (Introduction {to Heart of Darkness}, Robert Hampson. pg20) by King Leopold of Belgium. Heart of Darkness, by Joseph Conrad, reflects the colonial attitudes of that time, in relation to the black Africans who are commonly viewed and described as primitive and inferior and are marginalised in many different ways. Before Africans are even introduced in the story they are discriminated agains…