Inferno, Ring 3: The Gluttonous - Poetic justice?

In ring three of Dante's Inferno, the gluttonous lie in the filthy ground, all covered in mud and the filthy rain that falls constantly over them. They lie there, basically like pigs, without seeing or even knowing about the people around them. I see that as poetic justice for two reasons: they lived their life eating, and maybe behaving like pigs, so now in hell, they literally have to live as pigs would do. The second reason why I believe there is poetic justice is their life was shallow, empty and selfish, everything was tied to their addiction. So now they are condemned to live (not only as pigs) without being noticed, and they are given no importance whatsoever.