I am not so sure about the view of western farming. In Britain, sheep farming on a large scale came with the Enclosure, so too late to have such a great on impact on things like pronoun choice. And before that, in feudal times, people were bonded to the land. I have read articles comparing rice cultivation to grain and showing the effects they have on diet and the make-up of society. There may be something in these ideas and probably is, but how much would be the question. Is there a non-groupist rice society, for instance?