Agreed with LaughingLeader. You guys are too obsessed with those builds. In my plythroughs I used to sped a few points in almost every stat because of item restrictions. Mages can't wear only magic res. because of archers and tanks need int to get magic armor.
As for humans they are pretty good as mentioned earlier. Encourage gives a pretty solid buff, Wits is great because you really need to get that adventage. Especially for those who whine about surfaces. If you go first you shred enemies armor first if you do that, you can cc enemy first - easy win.

Yeah, if you're gonna play 4 rogues elves then it's possibly not so needed for you (I guess, didn't tied) but again if bugs with +20 AP will fixed and stuff like that be rebalanced, who knows.

And btw, who knows what lies in Acts 2, 3... maybe those will have some encounters that will be hard to occure with rogues and you will need that "stupid" Wits