I think I remember it being something about the evil of big corporate organisations. But making Buffy the head of one (and Angel of another) seems stretching things a little. IKN.

What's IKN stand for?

What I was referring to was actually the powerful woman who is distanced from society, with her amazon sisters...and is struggling to deal with a man's world. (The powerful corporation theme was in addition to that, but not the main one...that was plugged more into Dollhouse.)