Semiotic objections to markets urge us not to place a good on the market because of the message that doing so would send. Brennan and Jaworski reject them on the grounds that either the contingent semiotics of a market can be changed or the weakness of semiotic reasons allows them to be ignored. The scope of their argument neglects the impure semiotic objections that claim that the message a market sends causes, constitutes, or involves a nonsemiotic wrong. These are the most compelling class of semiotic objections and are the kind actually advanced in the literature. Rather than focusing on the necessity or contingency of a market’s semiotics, we should instead attend to a semiotic objection’s most important feature: its purity or impurity.