Most people suppose that when Paul explains what is wrong with the human race, he focuses on “sin.” This is wrong. What he says about “sin” in Romans 1–2 is secondary to what he says about idolatry. The primary human failure is a failure of worship. In Romans 1:18–25, “ungodliness” precedes “injustice”: those who worship that which is not God will inevitably produce distortions in the world.
The Day the Revolution Began: Reconsidering the Meaning of Jesus’s Crucifixion (N. T. Wright)