Fairness about themself, or about other bonobos? The first means nothing, the second would be interesting. i.e. if they see another bonobo being treated unfair

Fairness about themself, or about other bonobos? The first means nothing, the second would be interesting. i.e. if they see another bonobo being treated unfairly and don't like it. But if it's just about them, then that's not the same thing.