Not quite.  A good reading of Church history shows something much richer than a snide remark. 

It shows divine grace working through human nature, tirelessly, lovingly, definitively, attempting to perfect it. 

The Church doesn't, however, change human nature.

Human nature remains in a fallen state: self-focused, prone to temporalities, and - if left unchecked by constant grace - human nature can tend toward sullenness, ugly prideful behavior and snideness.