"Mr Xi oversees the party and its 92 million members — that might sound huge compared to Australia’s population of 25 million, but it is less than 7 per cent of China’s 1.4 billion people."
Its actually much less innocent than it looks like. Add an additional 100-150M for Communist Youth, a subsidiary organization and 150-250M for Mao Judend, a subsidiary for kids. Its called totalitarianism for a reason.
Politburo (= "Political Bureau") of Central Committee of Communist Party of Soviet Russia. Also, a Politburo member becomes The Chairman.
In a nutshell, ringleaders of ringleaders of Bolsheviks. *MUCH* more equal than the others, naturally.