I have lived near GC. This is not your typical western demographic in HK. Most are 50+ Fat and with a younger Filipinos - I wouldn't say that;s the norm for westerners in HK
No idea about your club
Any Rugby club in the world would have players and people around drinking in excess it's the culture of the sport...If you had say Fencing I would have been more surprised....
So yeah I think the issue is more where you hang out that western people in general