The reason people don't pay attention to them is their lack of L5 missions.
I started out running missions for them when I created this character. What's not to love about "Wiyrkomi Peace Corp"? However, I've found conflicting information about them in regards to their patriotic credentials, making them sound more pragmatic than hawkish. If I stumble across it, I'll post it.
See, I didn't know level 5s were that popular. I would have chalked it up more to not having as many stations are some of the others (plus being 'National' rather than 'Global' like Lai Dai, KK, and Ishukone).
I would be interested in the info you mention, if you do find it. Was it that they were more practical than patriot, or might it have been something along the lines of
their interpretation of Patriot might have had a lot of practical elements. (Sort of a 'rugged self-reliance' model, except the 'self' involved is a vast megacorporation).