That's being unjust to Augustine, who said things that affected Christian thought for the worse. His views on the place of sex in marriage have led at least in part to the idiocy that is Humanae Vitae; and his writing on predestination directly inspired Calvin's doctrine of double predestination. Augustine's views on original sin are, to say the least, controversial. His argument that the Donatists be brought back by force was the theological underpinning for the Inquisition. He can be accused of anti-Semitism.

But his views on other subjects are significant. He insisted on absolute honesty, in himself and in others. He taught that intention was the most important consideration in morals. He furthered our understanding of the Trinity through remarkable use of analogy. His De Genisi Ad Litteram shows that an overly literal interpretation of the Genesis account is bad science and therefore bad religion. His Just War Theory has been corrupted by those seeking to justify their wars.