Hmm so 90% of the forum is asking how come JW didn't use his wealth and power, umm let me remind you all something, JW has NOTHING, after the PR raaz it was made obvious, the house belongs to Billo, another house belongs to his mum(now Billo too), the Walia Empire belongs to the dixit disasters. As for his power, that too was also dimished after the PR raaz when the sainthood cried out innocence.
So you see he can't use something he hasn't gotten. But one thing he could've done was tell Bani, but her highness would've just gone ahead and cried out infront of everyone at some party and well giving the vamps a go single to not only destroy her but dragged Jai, the entire bali/(whatever Billo's last name is) khandaan with her.
So with whatever Jai did, only one person gets affected the most, and that is Jai himself. The all so innocent Bani will escape the asylum and live peacefully in some other country, the balis and the extras would just go about their normal business, and the left over dixits will keep on ruining Jai. So only he is the loser in all of this Not Bani.
Man, i just can't wait till the day Bani starts her revenge and then after completely shattering Jai's physical being(cuz you know the soul is already ripped into pieces by the dixit disasters), and when she finds out the truth that would be worth a watch.
Yours most loved "heartless" person,
Shina