The transformation really hasn't been that big for Baeshra, as far motive and ideals go. She joined the military because she wanted to help people, and left it because she figured she could do a better job of that as a sellsword than as a soldier beholden to someone else's orders. So far, she's just kept doing what she was already doing, albeit with higher stakes. What has changed, however, is her personality. At the beginning of her journey, she was humble and viewed herself as simply one soldier/hired sword among many.
And unfortunately (for everyone else), the slow rise to Championship has done irreparable things to her ego.
"You can't solve everyone's problems!!" Uhhh, yes I can, idiot. Watch me. There is no problem in Savarra that cannot be solved through the power of undying love, lots of money, and INCREDIBLE VIOLENCE. Emphasis on the incredible violence, it's her favorite part of the job. In fact, she's started to develop a bit of a Battle Beast complex where she's constantly in search of an opponent that can kick her ass. It's part of why she likes Kass so much. And why she's so mad that Tollus keeps running away instead of just taking the asswhoopin' he rightfully deserves.