There is a subtle form of ego projection which may go unnoticed.
Sometimes other people are arguing or upset. It may not necessarily have anything to do with you and you might not be actively a part of the argument.
But the ego in you can start to experience a kind of "delight" that others are suffering or in conflict. It's almost like saying, I don't even need to project sin to make others guilty because they're doing a great job of being guilty on their own.
The ego then kind of sits back in glee, in a kind of sick way, excited that someone else is receiving the punishment.
I've seen this rise up in myself on occasion when other people are having arguments in front of me. The ego becomes a kind of spectator, feeding off the situation by "enjoying" the conflict.
The ego is sadistic, and false beliefs always lean toward welcoming suffering. The ego loves to suffer, to be both victim and victimizer. So when both external parties are victimizing and being victims of each other, the ego is having a field day.
I have to watch this in myself and notice it. When I notice it, it seems to collapse and disappear immediately if I recognize that this is me being ego. Just because I don't seem to be involved doesn't mean my ego stays quiet. It gets involved passively.
This is also the source of people gossiping about each other or backstabbing or creating drama indirectly about the behaviors of others. Using them as virtual scapegoats. Taking advantage of the opportunity to be "right" about others being "wrong" because of how other people dug their own grave.