This is why I have a hard time disliking her. She is interpreting her visions wrong (Or maybe right, what the fuck do we know) but honestly believes. She keeps saying she needs to know more, needs to make sure of the future so she can help Jon and Stannis. We know that she is fearful of something (She keeps repeating "Lot Seven" and "Melody") but we don't know what, and as of yet that hasn't seemed to change her course. She maybe be wrong, but she does not seem selfish or like she is in it merely for power. I'm sure that's something she wants, and I think there was even a remark of how no one thought a woman would be so strong, but there is a genuine amount of concern for those she is trying to counsel.