@revelette1,
Trump trusted Bannon, a trust that turned out to be badly misplaced. From all appearances Bannon, with his proclivity for self-promotion and presidential ambitions, wanted to do his best (via leaks, or any other means) to advance the perception (see, e.g., SNL) that he was the "genius" behind Trump and that Trump was merely his puppet.
Bannon may have assured Trump that Wolffe was "in his pocket" and would only report positive things, who knows? But even assuming that's the case, not "overruling" Bannon's judgments and actions is not tantamount to "authorization." The failure to "save" a drowning man is not tantamount to murdering him, either. It appears that Bannon was playing Trump, who trusted him, at the time.
From what I've heard, after Bannon was fired, Wolffe never again got into the west wing.