Materialistic people are sometimes called sudras, or descendants of monkeys, due to their monkey like intelligence. They do not care to know how the evolutionary process is taking place, nor are they eager to know what will happen after they finish their small human life span. This is the attitude of sudras. Sri Caitanya Mahaprabhu's mission, this Krishna consciousness movement, is trying to elevate sudras to the brahmana platform so that they will know the real goal of life. Unfortunately, being overly attached to sense gratification, materialists are not serious in helping this movement. Instead, some of them try to suppressit. Thus it is the business of monkeys to disturb the activities of the brahmanas.

Srimad Bhagavatam, Bhaktivedanta Book Trust, 1999. Canto 5, Chapter 14, verse 31, purport. Vedabase - Quotes from Books - Quotes from Books: Religious and Cultural Elitism