You know, Navier didn't even against the emperor having a Concubine, she didn't want to have anything to do with Rasta, Rasta are the one who always plotted against her, Navier never retaliated or something. Even after the divorce, Rasta still bothering Navier so much, that's just straight jealousy not survival instinct or anything. She might too dumb to be cunning villain, still she is a bitch.
By your logic, you should defense the Emperor as well since all he want was to save the damsel in distress, the reason he always taking Rasta side even though he knew it wasn't Navier fault cause he pitied Rasta who have nothing and doesn't know anything, in other hands Navier was born with everything so she should be generous and considerate toward Rasta.
People, I'm not saying she is a good person. I'm just trying to explain her motivations, the reasons behind her actions.
She was freaking scared of being abandoned again, so of course she did lots of bad things, but I think she does them because she actually believes it's what she must do.
Sovieshu on the other hand didn't need to be such a bitch.
Rashta is stupid but she is not cruel. What she does, even the bad things she does, are out of fear and survival.
The higher you go the worse the fall is. She went from being a slave to being the emperor's concubine and she is scared of going back to a life in which she had nothing.
I'm not saying she is a saint, but I see a lot of hate directed towards here where she is just a dumb kid. She even talks in 3rd person, and even Duke Eldgy uses her as a tool.
Sovieshu on the other is an asshole and a stupid ones at that, riaking the empire stability just because he wanted to have sex.
Thanks you for coming to my ted-talk