
John G. answered 08/13/19
Flexible tutor with MA in Classics
While I have not done research into the relationship between Game of Thrones/A Song of Ice and Fire and The Divine Comedy, I have done research on the relationship between GOT/ASOIAF and Homeric epic (The Iliad and the Odyssey). And the short answer is...it does not matter if he drew direct inspiration or not.
Nobody writes a story in a vacuum; by your sheer existence in society, you consume media that can be traced all the way back to Dante, and Cicero, and Virgil, and Homer, and all the other great writers that have lived throughout the last three thousand years. You can draw upon them directly (i.e., the Rat Cook story in GOT draws from both the Odyssey and the myth of Tantalus); you can draw on them indirectly (GRRM drew upon Tolkien, who drew upon Norse, Finnish, and Roman mythology; you can even try to avoid drawing upon them - but by the act of deliberately avoiding them, you allow yourself to be shaped by the story.
GRRM may have drawn directly from Dante the conception that the punishment fits the crime, with the examples you listed being primary evidence. But it's also a trope in modern-day storytelling that people should "get what's coming to them" in ways that are reflective of their flaws: in Return of the Jedi, the Emperor's hubris prevents him from seeing Darth Vader's inner conflict and redemption; in Stranger Things, Dr. Brenner is killed by the monster he tried to control via Eleven; in Captain America: The First Avenger, the Red Skull is defeated by the power he tried to harness to defeat the Allies. I can't tell you for certain if George Lucas, or the Duffer Brothers, or the Marvel writers were drawing directly from Dante, but they were very clearly following in a literary tradition that can trace itself back to Dante. And at its core, that is what matters.