It is immoral to force someone into a marriage. Ergo, the Firehelms, except for Hilgya and Kudzu, must all die dishonorably and spend eternity under Hel's care.
She's Chaotic Good, really, to only bankrupt them, when you think of it.
There's a difference between arguing that "oh, she likely hit innocents" and arguing that "oh, the forced marriage wasn't a big deal/may have been deserved". It's why I don't argue for the genocide of the clan with you, just for the fairness of bankrupting the Firehelms.