Does a narcissist ever get their comeuppance/karma for the vile things they've done? Such as cheating, smear campaign, etc.

I strongly recommend reading these articles on Quora:

7 Reasons Why Narcissists Won't Change

7 Ways Narcissists Discard You

What is the difference between Michael Corleone’s marriage to Apollonia Vitelli and Kay Adams?

Boy, could I write a book on the ways and how much I wish they did. Reading through these stories, I find myself amongst my brethren. It seems we all have a person in our lives who just fixated on us. Perhaps we should be flattered that our supply was just “so, damn, good”. But I don't feel like that at all. My ex narc is using our 6-year-old to torment me now, and he is so manipulative that he has our son lie to me so I can't protect him when he hurts him.

Avoid Making These Big Mistakes With A Narcissist

10 Toxic Behaviors of Female Covert Narcissists

He led George W. Bush's PEPFAR program to stop AIDS. Now he fears for its future - NPR

10 Actions That Terrify Narcissists to Their Core

Every time I have to drop him off I worry about my son's safety both physical as well as mental. My ex narc will spin a story around so fast it'll make your head spin. I used to have to write our conversations down so he couldn't twist my words and even then he did it. By the time he left I was a jumbled up mess who didn't know which way was up.

Uncover 7 Key Differences Between Narcissists and Sociopaths

Why are men ridiculously delusional in the women they want/approach? I'm not a troll. This is a real question. Why does a fat, pot bellied, unkempt, balding, stupid (ergo poor) man, tell a woman above his league that she isn't hot enough for him?

Being away from him has at least given me room to observe and call him out though this does no good as he is a pathological liar. He can't keep a girlfriend or any friend for that matter. Meanwhile, I am still trying to heal while in this war. It seems every time I think it's settling he throws more dirt and dust at me to keep me clouded. I think I am getting better. The divorce is final. I've moved on into a new relationship, but I could tell some stories, my lovies. To all who can relate to my pain and the pain of others described on this thread, you're not alone in this. Even when it feels like it. People will eventually see the narc for what they are and you will be redeemed.

7 Demonic Doors Opened in YOUR Life Through Narcissists

10 Toxic Relationship Behaviours to Watch Out For

Romania in the past was a poor country, but last year the government announced it had 521 billion leu (113$ billion dollars) revenue. Why is so much? What's the reason?

10 Reasons Codependents Fall For Narcissists