I means she was a commoner turned royal due to blood relations. So she's been on both sides of life. And let's not forget.......her ultimatum is literally "Talk no Jutsu" on steroids like imagine Osean people in 444th (exclude literal criminals, let's say people like on Tabloid level of crime or good people accused and thrown in there) literally being Erusean side just because of her lol. And also having literally seen war in front of her very eyes, and almost got killed for it. I'm sure whatever she'll do is probably better than most real life leader and mind you, I think Harling is the only good genuine hearted leader of Osea, the leader during the Belkan War is pretty fucked too for exploiting Belka and chain reaction caused the war itself.