Pope John XXIII
Mater et Magistra §36
Mater et Magistra: On Christianity and Social Progress
36 Hence, as the Pope remarked so discerningly, "economic domination has taken the place of the open market. Unbridled ambition for domination has succeeded the desire for gain; the whole economic regime has become hard, cruel and relentless in frightful measure.'' (15) As a consequence, even the public authority was becoming the tool of plutocracy, which was thus gaining a stranglehold on the entire world.
Source: Mater et Magistra (Vatican.va)