Thousands of Southern Baptists overwhelmingly voted Wednesday to advance a formal ban on women pastors in the nation’s largest Protestant denomination, sending a clear message that men alone should preach to these conservative evangelical congregations.
cf. other primates noticing injustice
There are some near-universals.
How do you measure justice?
Other primates seem to have a similar sense of it, so check out some of those ethology studies for starting from very basic principles of commonality.