Interesting thoughts and perspective. For me, as long as I recognize the voices for what/who they are, I'm okay. 

Now if I start hearing voices from OUTSIDE my head, I'll start to worry. 

Seriously, though, sometimes I have to let the voices in my head talk and have their say and then move on. Otherwise I tend to just bottle things up. I also have the unusual perspective of having lived with dissociative identity disorder, so the 'voices in my head' concept is quite a bit more literal for me, even now that I'm fairly certain my voices are on the level of 'normal'.