i wouldnt say "selfish" as the end result of these machinations is making it so its possible for him to go insane and kill himself.

We where worried in wrath that Noz might be usurping his flight in order to save himself. but it looks more like DESPITE knowing he will go mad and try to usurp himself later, that he is doing what is necessary in order to make it happen.

In other words he COULD try to save himself, but he is going to sacrifice himself to keep the timelines as they should be...or something. Either way he dies in the end of all this so he isnt doing it for his benefit.

I wonder if Nozdormu is trying to make the timelines as they should be by manipulating them for certian results (He knew before he got his power how he was suppose to die, so even if he has to change the past, as long as the future is how it was told to him by amun'thul it is correct and as it should be) while His negative self said something that makes it sounds like He (Morzdornu or w/e) knows something AMun'thul doesnt.

In other words The titan gave norzdormu a path he needs to follow even if it means his own death, while Future Evil Norzdoru sees this path is wrong (in some way) and knows something his creator doesnt and is trying to change it.

Once again the titan's lack of forsight (or machinations) are destroying and reshaping azeroth.