 Marx’s account of the sources of social stability in class-divided societies appeals to both repressive and non-repressive mechanisms. Such societies might often involve the direct repression (or the threat of it) of one group by another, but Marx does not think that this is the whole story. There are also non-repressive sources of social stability, and ideology is usually, and plausibly, considered one of these. Very roughly, Marx’s account of ideology claims that the dominant social ideas in such societies are typically false or misleading in a fashion that works to the advantage of the economically dominant class.