Sure “costs too much money” is an umbrella term that includes scarcity as a cause but can include other things. When its a consequence of something other than scarcity, the purpose of the article is to point that fact out. Unlike issues of scarcity, societal problems are often solvable but for lack of widespread will, and awareness that solving that underlying societal issue could solve a more obvious and important problem we’re interested in solving is useful because it helps rouse that will.