Unlike the nine mortal Men whose Rings of Power corrupted them and turned them into wraiths in the service of Sauron, we know the Dwarf-lords who received the seven Rings of Power proved to be resistant to Sauron’s domination. So why didn’t the Council of Elrond just give the One Ring to a dwarf to bring to Mordor?
It should probably go without saying, but I’ma have spoilers below. If spoilers for 60-something-year-old books and 20-something-year-old movies are an issue for you, you have been warned.
“Three Rings for the Elven-kings under the sky,
Seven for the Dwarf-lords in their halls of stone,
Nine for Mortal Men, doomed to die,
One for the Dark Lord on his dark throne
In the Land of Mordor where the Shadows lie.
One Ring to rule them all, One Ring to find them,
One Ring to bring them all and in the darkness bind them.
In the Land of Mordor where the Shadows lie.”
– J. R. R. Tolkien, “The Fellowship of the Rings”
While the Dwarves were able to resist being controlled by Sauron through the Rings of Power and that the hardiness of the powerful Dwarf-lords who received the rings meant that they were resistant to the worst effects of the Rings, we know that the Rings did, however, intensify their greed. The Rings also aided the Dwarves in amassing veritable hordes of treasure, attracting dragons and leading to their downfall (four of the seven rings ended up consumed by dragon-fire by the time of the War of the Ring).
So, while the Dwarves could resist Sauron’s domination, would a Dwarf be able to part with the most precious of golden rings which stokes greed and brings vast wealth? As even Frodo wouldn’t part with the One Ring in the end and Hobbits are much less interested in material possessions than Dwarves, it seems unlikely.
[…] The ringwraiths are the prime example of this drawing in action. Having worn the nine rings of power given them by Annatar (spoiler alert: it’s SECRET SAURON!), the nine kings of Men were drawn permanently into the Unseen, to exist as wraiths. They had only a partial physical form in the Seen, hence the ratty black robes they were so fond of. (“But what about the Dwarves?” you may ask. The dwarves’ natural hardiness allowed them to withstand Sauron’s influence while wearin…) […]