Well anyhow, you can keep Capital planets secure by plopping down POB's, job done. You don't need NPC's.
Despite this having become some nonsensical debate about evil PVP'ers vs. poor RP'ers, the point still stands that NPC's ruin fights for all sides involved. It's detrimental to player-to-player interaction.
High-level NPC's can be spawned in missions just fine for those that wish to do so, there's no reason to have roaming NPC's at this level and in these numbers.