SINGAPORE – SEPTEMBER 11: Prime Minister and People’s Action Party (PAP) Secretary General, Lee Hsien Loong (L) and Dr Koh Poh Koon (R) celebrate after winning their seat for Ang Mo Kio Group Representation Constituency (GRC) on September 11, 2015 in Singapore.
Suhaimi Abdullah | Getty Images News | Getty Images
SINGAPORE — Political scandals are rare in Singapore. The city-state has long touted its clean government and incorruptible image to…