Unfair? Perhaps. But nobody said the world is fair.
For your case, maybe you would like to go to JC and continue in
this fantasy of "everything must be fair". I'm not from JC so I
can't say much, but I am pretty sure life is not much fairer
there.
As for Poly? Well, it teaches you many things other than academics.
Things that are relevant to your life, thats why its a tertiary
institution.