You're a little quick on the draw there, Roy. And it appears to me that you're shooting with blanks.
I would suggest that a Russian general being onvolved in a plot to murder the ruling sovereign and overthrow the government in favor of the Tsar's son, who knew of the plot, is distinctly dishonorable and does bring dishonor upon the entire Russian officer corps.
And Bennigsen wasn't the only Russian officer involved in the plot and murder.
And your analogy is a false one. The Union officers concerned were not attempting to murder and/or overthrow the president of the United States.
I would suggest that you get hold of David Hackett Fischer's Historians' Fallacies. It would be of great help to you in your future endeavors.