In fact to go further, even just the inclusion of an item on a "race to the bottom" page implies negativity. In isolation, "cheap food" is a pretty positive thing, the emphasis may be on "food" and we all need that. But in this context it may imply the emphasis is on "cheap" and further imply bad, and most would agree that food quality is important so might downvote it, even though the concept is pretty good.

Similarly, "Wind farms" (negative connotations) vs "Wind power" (positive connotations).