It is like saying if i do charity i do care not use it to look better. 
She pretty much did she is in sole control of everything doesn't mean that she raised mages freedom for sake of other mages but simple for herself there is no any indication that she want good for others not even a little one as i said she want subjugate to rules she herself don't want to follow in fact cole outright says she don't want to be controled again.
Again, it doesn't matter why she gave mages freedoms, she did it. You seem to think that the fact that it benefited her as well negates the good that she did for the mages.
To use your own analogy, it would be like saying, "Well I consider that you didn't do any charity at all because you only did it to look better." But if I built houses for the homeless to make myself look better, do those houses not count? Can the homeless not live in them? Do they not still benefit their living situation? Is it fair to say that I didn't help the homeless?
Like it or not, Vivienne helps the mages. She gains power when she does it. But there is literally no way that you can argue that she doesn't improve the conditions for mages under her rule. And, she doesn't have to do that in order to rule (she could just go back to status quo), so doesn't that imply that she, at least partially, cares about the condition of mages?
In the end, I think Vivienne is the sort of cynic who sees what the problems are and is good at pointing them out, but who doesn't have the spiritual fortitude to try to fix any of them, at least the truly systemic ones. Ironically, Sera is much the same way.
Why do you think she does care about the rebels, though?
Because she still welcomes them back into the Circle and there's no indication that only loyalists have opportunities to thrive there. Yes, I'm sure that loyalist mages probably gain the most opportunities under her rule, but I cannot imagine that a moderate rebel mage, like Rhys, wouldn't have opportunities to thrive in her new Circle. There's a patronizing tone to her thoughts about rebel mages, but I think that she doesn't want to see them hurt or oppressed.
I don't see it this way. The fact is that the status quo ante simply isn't possible. This is apparent since all the Divine and mage-templar outcomes result in mages having more freedom and the Circles changing to one degree or another. As I said above, Vivienne giving mages extra freedoms is expedient, it's not something that's part of her platform. Correct me if I'm wrong, but where does she ever say "of course mages should have more freedom" or something to this effect? Cole says she believes the templars were right. He says this in context of Lambert's crackdown and deliberate provoking of a rebellion. So is she clueless or does she really like having a whip as long as she holds the handle?
The status quo could be possible in theory though. Again, I think that the writers are trying to keep options open, so that's why we see similar outcomes from all three Divines. But, that being said, if it weren't in Vivienne's character to reform and reform were necessary from a plot driven stance, then they would have only had Leliana and Cassandra as options.
I never got the impression that she was against mage freedoms at all. I don't remember every line of dialogue with her off the top of my head, so I don't remember if she ever said the line that you mention. But it's certainly implied in all of her dialogue that she supports mage freedoms.....to a point. And there's a line in her mind at which she feels that those freedoms then run counterproductive by offering too many opportunities for mage corruption. To me, this is why she supports the templars to a degree (not completely, mind you, as she still reforms the order). She views the templars policing as necessary; as a form of checks and balances against mage corruption.
She definitely is the most conservative mage that we've seen (outside of someone like Keili from DA: O) and there's certainly a bias in her views. She's worked hard to get herself into a place where she has privileges that means that she doesn't need to deal with the daily life of an 'everyday mage'. I take what she says as being viewed through that lens. The same way that I take what Anders says as colored through a particular lens. We've been fortunate to have the perspectives of several Circle mages: Wynne, Anders, Rhys, and Vivienne. Anders is one extreme, but there's truth to what he says. Vivienne is the other, but there's truth to what she says. Wynne and Rhys seem to recognize parts of both extremes, but fall somewhere in the middle. I tend to believe their view as the closest to the 'truth', but it doesn't mean that some of what Anders and Vivienne say are also true. At least, that's how I see it.