jtr,
It is human nature to think of one self first and in an environment where you have the option, most do. That is the positive of a legal union being able to voice a policy and enforce it.
Here in CX we don't have that capability. People do think of themselves first whether they work a "G" day or not.
There is no answer or correction which will work short of legalizing unions in HK and this obviously is an advantage for CX management. We can bang our heads against the wall or just accept the fact that we are the most un-unified group within the industry that I know of.