[Formendacil]

It should maybe be noted that in Tolkien's works, by and large, we generally only see the good Dwarves. Mîm is probably the only exception, unless we look into the "Lost Tales" era "Fall of Doriath" Dwarves, who probably provided him with much of his background. And it has already been noted that the Petty-Dwarves are perhaps a great deal more similar to Rowling's Goblins than the Dwarves in general.

Would it perhaps be fair to say, then, that Rowling's Goblins are quite similar to Tolkien's Dwarves gone bad? After all, we potentially have four houses of the Dwarves that went "bad" in eastern Middle-Earth. Like Rowling's Goblins, I don't think anyone really sees them turning out in mass numbers to fight Sauron's wars (we are told, regarding the Last Alliance, that few Dwarves fought, though on both sides), but if we imagine them as more pro-Sauron than pro-West, then we receive a rather similar idea: neutral for their own benefit, dangerous to thieves, and rather malicious.