IC needs its own, unique to its theme, enemies
Here are some ideas:
a terrifying safety inspector!!!!! He steals your gold and diamonds if you have too many uninsulated cables or water next to power line.
an annoying hippie who'll spawn if you have too many nuclear reactors or fuel based generators. He follows you around (like that clown in SIMs) and talks trash about being one with nature or smth. He also destroys your GM crops and frees tamed dogs and cats. He'll become peaceful if you make IC compatable with "better than wolves"
And for SMP - the most dreadful of them all - A UNION REPRESENTATIVE!!!!!!! he'll prevent you from building things the way you want the to build
add more suggestions people!!!