In your attempt to portray Orcs as mistreated tusked humans, you've only proven my point: certain Human cultures are unrelentingly martial...but some are fairly noninterventionist (neutral) while others are beacons of justice and progress. In the aggregate, Human cultures across the lands are mixed because humans don't tend towards any particular Alignment/morality/ethos. Orcs are savage by nature; peaceful Orc settlements are the oddities.