Jag tror att den andra relevanta informationen kommer från ett brev av Tolkiens,
Så, som andra har sagt, hade ringarna inte makt när den enda ringen förstördes, men de tre ringarna borde aldrig ha varit i Middle Earth till att börja med, så att ta bort dem var det rätta.In ["The Rings of Power"] we see a sort of second fall or at least ‘error’ of the Elves. There was nothing wrong essentially in their lingering against counsel, still sadly with the mortal lands of their old heroic deeds. But they wanted to have their cake without eating it. They wanted the peace and bliss and perfect memory of ‘The West’, and yet to remain on the ordinary earth where their prestige as the highest people, above wild Elves, dwarves, and Men, was greater than at the bottom of the hierarchy of Valinor. They thus became obsessed with ‘fading’, the mode in which the changes of time (the law of the world under the sun) was perceived by them.... Sauron found their weak point in suggesting that, helping one another, they could make Western Middle-earth as beautiful as Valinor. It was really a veiled attack on the gods, an incitement to try and make a separate independent paradise. Gilgalad repulsed all such overtures, as also did Elrond. But at Eregion great work began - and the Elves came their nearest to failing to ‘magic’ and machinery. With the aid of Sauron’s lore they made Rings of Power (‘power’ is an ominous and sinister word in all these tales, except as applied to the gods).
The chief power (of all the rings alike) was the prevention or slowing of decay (i.e. ‘change’ viewed as a regrettable thing), the preservation of what is desired or loved, or its semblance - this is more or less an Elvish motive. But also they enhanced the natural powers of a possessor - thus approaching ‘magic’, a motive easily corruptible into evil, a lust for domination.