IMO, I doubt whether the money WT has paid out so far amounts to coffee money for them. They could probably afford to keep paying out victims in dribs and drabs like that forever most likely have even accounted for it.
Their brand would have to take a major hit for any real damage to occur. A hit they couldn't recover from. A massive class action possibly. One that exposed their culty ways in detail in HD on news screens everywhere for a couple of months so their name became synonymous with weirdo cult in a big way, far bigger than what we've seen so far, maybe? Reports about coruption or a tax exempt scandal could take them out.