A lot of bad writing about this film so far. Detached, holier-than-thou reviewers who are standing above the movie instead of understanding what it's really about.
Saying "At Any Price" is about farming would be like saying "Brokeback Mountain" is about gay sex.
This movie is a morality play and it reveals contemporary American values by the behavior and the actions its characters take. It's not about farming and it's not about race car driving. Those are simply backdrops to what this movie really is about and how it goes about it.