To put it bluntly, the privileged value purity. The put-upon realize that progress requires power.

Lefties and Democrats: It's time to embrace power
I’m currently reading The Passage of Power: The Years of Lyndon Johnson, Book 4. The Center for New Liberalism steering committee also just elected me Chair. Most importantly, my dad recently called me a leader. Thus, I’m thinking about leadership even more than usual lately.
cathyreisenwitz.substack.com