As corporations increasingly embrace ethical commitments and prioritize corporate social responsibility (CSR), commentators have begun to speak of a shift toward “moral capitalism.” This shift has revived debates about the compatibility of CSR with economic efficiency and the role of markets in promoting social change. We find the economic concern misplaced: moral capitalism efficiently responds to a growing demand for CSR from all stakeholders, including shareholders. Yet the same market mechanisms that make modern CSR profitable raise political objections worth considering. Major shareholders can now leverage their disproportionate economic power to use corporations as vehicles for forcing unilateral resolutions of societal issues, bypassing and undermining formal democratic processes. Beyond this, there is a broader risk to social cohesion: when markets become arenas for adjudicating rather than sidestepping moral and political disagreements, they reinforce exchanges among “friends” (those with shared preferences) while deepening divisions with “foes.” This may import polarization into market life, with spillover effects on society at large. Taken together, these concerns raise the question of whether moral capitalism may threaten the very democratic moral sensibility it claims to uphold.