Ironically, their approach of not celebrating holidays, joining the military, etc, etc. isn't anything new. There are many groups, cultures and your regular every day person who doesn't care to do these things.
From an outsiders perspective who's aware of the cult inside out, they are actually very "worldly". To call yourself spiritual, and consider yourself a chosen one, yet have the foundation of your spirituality set up like the corporate world, I don't see how you could get any more "worldly".