It’s not your job to save or fix them

The grandiose people, because they feel superior, they’re very unlikely to seek treatment. Rather, they hold a grievance against the world, which will eventually cause for a deep craving for admiration and lead the narcissistic to lead a life searching for fleeting ego boosts. The narcissist is unwilling to unravel the false ego self, which is a necessary part of the healing process. Unfortunately, they are genuinely damaged and not open to healing.
https://www.lifehack.org/378583/13-signs-narcissists-who-sabotage-your-happiness