A corrupt politician can be loved by the people. In Portugal and other European countries it often happens.
Especially if these "politicians" are keeping a country prospering, people will overlook these crimes as long as the situation stay prosperous for them. When stuff goes to crap is truly when changes happen and heads roll
Singapore was yet to go to a devastating 2008 (like PT for example) and with their geramandering (vote manipulation) unless something Massive happens change in unlikely.