But the claim that the boss' interest are actively anti-correlated with readers is an incredibly strong claim itself. In the vast majority of contexts this won't be true. Who benefits if new technologies are discovered? Who suffers if there's a nuclear war or if we reach peak oil faster than generally anticipated?

It is conceivable that within the narrow confines of what the WSJ editorials generally discuss there's an anti-correlation. But even that set of narrow topics is pretty wide. To the point where this seems unlikely. It seems more likely to me that there might be specific ideologies which in their narrow realm are anti-correlated with truths about controversial questions. But to construct explicit unambiguous examples of that even in economics I need to do something like select merchantilism as the relevant economic theory.