What is a primary cause of the concentration of power within bureaucracies, as highlighted by Robert Michels' theory?

A primary cause of the concentration of power within bureaucracies, as explained by Robert Michels' theory, is the idea that organizations tend to become oligarchic over time. This means that a small group of people, often those in leadership positions, end up making most of the decisions, while the larger group of members has little influence. Michels argued that this happens because those in power can control information and resources, which makes it hard for others to challenge them. For example, in a large company, the executives might make important choices without consulting the employees, leading to a situation where only a few voices are heard. This concentration of power can limit creativity and prevent new ideas from being considered, which is a challenge for many bureaucratic systems.