In the context of elite theory, how does an oligarchy typically maintain its power within a bureaucratic system?

In elite theory, an oligarchy is a small group of people who hold power and make decisions for a larger population. To maintain its power within a bureaucratic system, the oligarchy often creates strict rules and procedures that help them control the flow of information and resources. For example, they might appoint loyal supporters to key positions in the bureaucracy, ensuring that decisions favor their interests. This tight control allows them to limit challenges from outside groups and keep the public's voice weak. As a result, the oligarchy can remain influential and continue to shape policies without much opposition.