Christoph was not a fool, he was aware that Bruno's rapid rise to prominence both in the Imperial German Army, and among the aristocratic class had made him many detractors. It was an obvious inevitability, one that Christoph already suspected Bruno was already well aware of himself.
After all, humans were petty and vain creatures. And those who rose to the top via their own merits would always be chastised and spat upon by the incompetent, the mediocre, and god forbid those who gained their position through nepotism.
But Bruno had gained the Kaiser's favor and because of this, nobody had the balls to openly say anything about the man. They would only whisper among those whose ears they knew were friendly, and even then, they would take more than a few glances around to make sure that no prying eyes were lurking around the corner.