Serve the renminbi
From China Digital Space
为人民币服务 (wèi rén mín bì fú wù): serve for renminbi
This is a parody of Mao Zedong's famous exhortation to “serve the people.” The original phrase is reproduced in Mao’s calligraphy above many government buildings and in front of the entrance to Zhongnanhai, the complex that houses the Central People’s Government and the Communist Party of China.
In Chinese, renminbi (RMB) is literally, "the people's currency." By adding one extra character, the phrase "serve the people" is transformed into "serve the renminbi" or "serve in order to get renminbi." The parody strikes a chord with those who feel that officials are more concerned with accumulating personal wealth than they are with serving the people.