Depends on what you asked for. If you look at the student
http://www.cathaypacific.com/cpa/en_PH/offerspromotions/offerslanding?refID=f082f439d085e310VgnVCM62000007d21c39____&priority=3 and overseas worker
http://www.cathaypacific.com/cpa/en_PH/offerspromotions/offerslanding?refID=ba91f439d085e310VgnVCM62000007d21c39____&priority=3 fares for, say, Vancouver you will see they are the same (there is not fare for Toronto for students, could be all booked or something).
You will see there is also more than one rate. When you open the details you can see the differences. For instance, the $440 fare to Toronto does not allow you to collect Asia Miles, the $920 one does. The $1170 lets you use miles to upgrade your ticket, the $920 doesn't. I don't know what differentiates a $520 from a $440 though I would imagine it is probably flight times (even for regular tickets there is a base $1090 ticket with limited flight times and a $1220 with a much expanded number of flight times).
For me, the $440 or $520 would be fine. I don't care about the points that much.
Oh, and also the cheaper seats do not allow you to pre-book what seat you are in. You need the $760 or better seat for that (and you get miles).