 Note that in theorizing institutional corruption the distinction between an entire society or polity, on the one hand, and its constituent institutions, on the other, needs to be kept in mind. A theory of democracy, for instance, might be a theory not only of democratic government in the narrow sense of the legislature and senior members of the executive, but also of the public administration as a whole, the judiciary, the security agencies (police and military), civil society and so on. Obviously, a theory of the corruption of democratic political institutions (in the narrow sense of the legislature and the senior members of the executive) might not be generalizable to other sorts of institution within a democracy, e.g., to security agencies or market-based institutions. Moreover, fundamental differences regarding the specific form that a democracy ought to take, e.g., between those of a republican persuasion (Pettit 1997; Sandel 2012) and libertarians (Nozick 1974; Friedman 1970), might morph into disputes about what counts as institutional corruption. For instance, on one view market-based institutions exist to serve the common good, while on another they exist only to serve the individual self-interest of the participants in them. Thus on the latter, but not the former, view market intervention by the government in the service of the common good might be regarded as a species of corruption. Further, a theory of the corruption of democracy, and certainly of the corruption of one species of democracy such as liberal democracy, is not necessarily adequate for the understanding of the corruption of many of institutions within a democracy and, in particular, those institutions, such as military and police institutions, hierarchical bureaucracies and market-based institutions, which are not inherently democratic either in structure or purpose, notwithstanding that they exist within the framework of a democratic political system, are shaped in various ways by that framework and, conversely, might be necessary for the maintenance of that framework.