Because the only thing teenaged boys like more than assassins is gothic pseudo-satanist assassins that say mysterious dark things.
You're forgetting about boobs.What is this about Vivec having Chim ? This is the first I've heard of it and if he had Chim why did he not use it to uberwtfroflstomp Dagoth Ur ? Did Dagoth Ur also have Chim and if so why did he not use it to stop the reincarnated Nerevar ? This leads me to wonder about Sotha Sil and Almelexia, did they not have Chim ?
I'm confused.
There's like... three Vehks. First, you have (had) the mortal!Vehk, who betrayed Nerevar and whatnot. Then you have (had) the god!Vehk, who is powered by the Heart. Finally, you have everything!Vehk, who is CHIM is everything is Vehk. The first Vehk went by that initial (I forget what his full name was. I like to imagine it was Valentine), the second Vehk went by the name Vehk Vehk, or Vivec. Sometimes, I like to imagine that the third guy, the one with CHIM, is called Vivivec.
Vivivec, having CHIM, is everything. He's every orgism, every high, every adrenaline rush, and every victory. He's Dagoth Ur and the Neravrine, and Azura. He's everything and everyone, and that probably makes it really hard to care about anything in particular. Sure, Vivivec could have killed Dagoth Ur, but why? "Oh, nooooo! I'm losing my god powers! What ever will I do, left with only my CHIM powers?" Vivivec doesn't even care if Vivec dies (you can talk to him about in in MW). This is also why he gave the Numidium away. The only thing that could bring him to act was the death of his BFFs Sotha Sil and Almalexia.