He also didn't mind taking money from the man with the silk suits, did he??
I've always thought that FFC made jabs at how "Americans" treated Italians, and used characters like Geary to do it. He also did it McCluskey, the judgment at the Bonasera trial, and so on. That "Americans" were so clean on the surface, that they looked down on the Mafia, but that they were just as corrupt.
I always found it interesting that Michael never appeared unnerved by an ethnic slur. Whether it came from McCluskey, Moe or Geary, he accepted it because, I guess, it didn't pertain to business. I think he was impervious to the sting of an ethnic insult.