Why are the puppets the ones who are disgusting compared to the bully?

The majority of the bystanders became the sociopath bully's foot soldier puppets without the bully using intimidation against them.

So, the bystanders joined the sociopath bully in tormenting a lone individual. Why is it that the puppets are the ones that disgust others, including the sociopath bully's victim and not the sociopath bully himself?
Why are the puppets the ones who are disgusting compared to the bully?
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