The billionaires control all the prices. Even the salaries. Somehow with what I'm sure is a very pro capitalist ideas they've capped salaries and made prices whatever they want because there's essentially no competition. 8$ for a beer. That's reasonable. It probably costs them less than a quarter to provide that one beer. That's a pretty good mark up.
So as is the case in many other areas of society there is one set of rules for some people and another for all others.
The millionaires, in this case, are the product and the labor. They deserve more.
There are levels of greed and a billionaire is a great example of this.