Perhaps it's just me as a Hermes fan (I also love Meteion, for what it's worth!), but I don't have any problem with connecting that sniveling hypocrite with either Fandaniel or Amon.

In fact, part of the reason I love Hermes so much is because I think he's an excellent depiction of the type of person that can seem very different depending on the society in which he finds himself, but the core of depression and nihilistic self-loathing (that he then contemptuously focuses outwards on the people around him) remains. He was happiest as Amon because the people around him were so obviously worth judging, but we can see hints of his contempt towards Zenos even as Fandaniel.