Holacracy is not a system for determining salary, or any specific tactical question, in the same way that "Agile" isn't a system for determining what programming language to use. Holacracy just says how an organization can decide how to apportion responsibility and authority. Different organizations reach compensation decisions in a wide variety of ways, no matter their meta-organizational framework.

Commonly, salaries are decided in a way very similar to the process at a "normal" company.

> To me it looks like he wants to have top management, a few superstars, and the rest of the company are totally interchangeable.

As I said, not much different.