In contemporary debates, the materialist ethics of Cārvāka has primarily been discussed in relation to and on the backdrop of ethical schema suited for systems whose metaphysics permits the notions of God and soul. This essay elaborates on this insight and draws attention to the significance of the metaphysical backdrop of ethical theories. We also briefl y discuss two aspects of Cārvāka materialistic ethics, which attends to the metaphysics of Cārvāka justly, namely the crucial role of pain in their ethical theory and the lack of inherent moral value to actions.