I don't think anyone is suggesting that Rapino is stealing from shareholders. We don't know how that money is spent or disbursed. What is clear from the case and settlement is that they were illegally maintaining a monopoly in the live entertainment industry that had stifled innovation and competition, and resulted in higher ticket prices for music fans.
The claim was that Livenation (or a few insiders) is benefiting from the higher prices. But the financials (low profit margins) don’t show that (absent fraud).
In which case, the benefit of the higher prices would be going to (some) performers. Which supports the claim that Livenation is useful as a punching bag for the most popular performers.