Six case studies explore the power of billionaires in their pursuit of security, wealth, and esteem. The chapter on security analyzes Raj Rajaratnam's relationship to the Tamil cause in Sri Lanka, and Sheldon Adelson's transnational electioneering in the Israel-Palestine conflict. Regarding the economy, the book studies how the Koch brothers' political protection of fossil fuels is affecting climate change mitigation, and how Rupert Murdoch's opinion-shaping is valorizing conservatism across borders. The chapter on social entrepreneurship and esteem examines the role of Bill Gates in the governance of global health and George Soros's attempts to build open societies as a 'stateless statesman'. An analytical conclusion evaluates the prior findings in order to address three major questions: Is it more appropriate to see billionaires as 'super-actors', or as a global 'super-class'? What is the relative power of billionaires within the international system? What does the power of billionaires mean for the liberal norms of legitimate political order?