I throw this out now, and I suspect I will follow up on it at some point.
Law schools, like mine, offer some dual degree programs: JD + MBA, MHA, or MA in communications or international relations... but these programs mostly keep their respective disciplines in separate spaces. Students might in their own minds think about one in context with the other, but the subject matters stay mostly separate. Only law and economics really seems to involve a true mixture of one academic discipline really informing the other.
In reading Eugene Volokh's recent essays contemplating punishment, I've been reminded of some of the social theory I learned as a sociology undergrad. It's been a long time, 9-10 years since I really thought about it, but in the context of the law I'm studying now it seems to make a lot of sense. (In particular, I was thinking about Durkheim and his theories on mechanical and organic solidarity and how they bear on crime and punishment in society.)
I think the law should be looked at through the lens of social theory more often, but I'm not sure enough scholars or practioners do.
Maybe I can start a trend.