You may right be with respect to the "have nothing else in life" type of JW. Religion has always preyed on these types of people, and some religions, (like JW), do their very best to make sure people stay in this state of misery.
For any JW with a career, a family, and all of the "normal" things in life, any reference to the "new system fixing things" is nothing more than a way to resolve their cognitive dissonance.They really don't want any such "system" to be a reality.
People naturally learn to accept that the world has problems, we eventually die, etc. When one has a normal and realistic view of such things, he/she will attempt to make the best life possible for themselves, and likely others as well, to the degree they can. No fantasy world needed.
d4g