Is it possible that private property and/or violence against humans is orthogonal to so-called stewardship of land? E.g. cultural norms could result in better natural preservation, even if by accident rather than by what a modern person see as a noble motivation.
It is certainly possible. It's also not just possible, but true where some private stewards cultivate beauty (vineyards) and some public lands cultivate destruction (downtown Seattle). Violence takes place on land, but stewardship I don't think is some inherent thing. All animals war over territory.
"The story of the human race is war. Except for brief and precarious interludes, there has never been peace in the world; and before history began, murderous strife was universal and unending."