Perhaps this blog post might clear that up. This guy who "authored an influential study" was a Stanford psych and law professor knew people and had a team. What does gvt do anyway other than the bidding of the networks of people running it? https://bloodyshovel.wordpress.com/2015/07/27/trade-and-peace/ …
Defending its sheep is in the long term interests of *government* - it's not in the long term interests of people who control a democratic government because their interests aren't aligned. Ideology gets them to act in the LT interest of the gvt *until that ideology is replaced*