I wonder if these people even realize that they are being treated the same way they treated you. The narc abusers I know only view themselves as "victims" who are "never wrong."

As far as my sympathy for them, I think it depends on whether they caused it or whether they were innocent. If what they did themselves backfired on them (like they gossiped, got caught, and were shunned out from the social circle), then I wouldn't feel bad, since they are reaping the consequences of their own toxic action.

But if they were completely innocent (which is less likely) I may feel bad for them.