Jokes aside, I think Niki will be fine. The greatest thing is being incapable of being a part of the problem/solution, the more she knows and is accepted by both Akira and Ami, the more she can act. She's not leaving either regardless imo, no matter what she finds out about.
And I think that's kind of what both really need. Someone that doesn't leave. And as for knowing about stuff, Niki is one step away of knowing a lot of stuff, I think. Most of it she just knows it's better not to take that step at the moment. But she's not an idiot.
If that ultimately will put her in a position to actually "fix" them, I don't know.
But she'll definitely try.