Being more popular on facebook means absolutely nothing simply because it doesn't represent the real world as far as SG politics is concerned.
Look up the demographics of Sinkie facebook users on Alexa. You'll find that 50% of those likes come from twits who aren't even old enough to vote.
Alexa also shows the majority of voters who matter don't even use facebook.
To put things in perspective, you have to realise that there are 2,350,873 on the electoral role. Even if she achieves 100,000 "likes" by polling day, it means zilch.