That, and one of the men in charge in Mittelafrika right now is von Lettow-Vorbeck. Sure, he made use of scorched earth tactics in East Africa, but that was military necessity, and not something driven by racial ideology, the way Nazi Germany's crimes were. And compared to most Europeans of his day and age, von Lettow-Vorbeck had much more respect for the natives, a respect reciprocated by the men under his command. If nothing else, he'd be a voice of reason, and considering the reputation of the Lion of Africa, not someone the German viceroy could easily brush aside. Hell, I wouldn't be surprised that if the viceroy was someone like von Trotha, von Lettow-Vorbeck would have him arrested before he could cause too much damage, and complaining to Berlin, be the one the folks back home would side with, and not the viceroy.