Rhetoric doesn't stop a car from running over you no matter how the warning is phrased if you choose to not understand said rhetoric. This is not a rhetorical argument.
The wealthy can't convince you they deserve wealth if they are dead. Does that make more sense now? The idea is that all the words in the world can't hide the truth of a situation and what ends up happening as a result of said situation.
See how well, "Why don't they just eat cake?" turned out.