That it isn't true is likely going to be a problem for Acton, I suspect; though I haven't quite ground through the Liberty Fund edition of some of his works; so the exact nature of the flaw it causes in his reasoning is yet to be revealed. Acton was a staunch Catholic2, so I suspect (somewhat like Doubty Descartes) he managed to convince himself that all morality must necessarily equate to his church's morality.
I note that history, and recent history, teaches us that most problems don't arise from this little matter, but through much coarser problems of poor governance or poor thinking.
* Paul Graham explains philosophy. Note the "confusion over words" recalling Popper.
* ACX: Justice Creep.
* DB: quote of the day, discussing Hayek: Perhaps, as seems to have happened today (as it has in the past), the people begin to distrust all claims to expertise and seek simpler, more intuitive, solutions.
* Cowen on Labor Econ Versus the World by Bryan Caplan
* Is accurate forecasting of economic systems possible? An editorial comment; by Irene Scher & Jonathan G. Koomey
* Reflections on the Ukrainian Refugees by Bryan Caplan
* Said Marcus Garvey, in urging blacks to undercut union wages as a means to employment and combating union racism, “the only convenient friend the Negro worker or laborer has in America at the present time is the white capitalist.” - via CH.
* Idol Words - ACX.
1. My picture is from The freethinkers' pictorial text-book: showing the absurdity and untruthfulness of the Church's claim to be a divine and beneficent institution and revealing the abuses of a union of church and state by Heston, Watson.
2. Staunch in the faith, but at the same time believing in liberty, and hence implacably opposed to papal infallibility.