[Petra]

Bro, suck it up. This will happen to everyone at certain point of their lives. No point begrudging Singapore work culture or it's unfair.

I have experienced this before and basically I can only suck thumb and keep telling myself to just do my job.

I don't think this is a Singaporean work culture kinda thing, I am sure this does happen in other parts of the world where you have people that will try to bring you down.
You just have to accept the fact that there will be people who will hate you no matter what you do.

If it's unbearable, tell HR. Unless you have other job opportunities, leave the company. Judging from your post (being humilated by your superior), I don't think you are at that level where your job experience is considered valuable or that of a higher rank to jump easily into another job.