And far away, as Frodo put on the Ring and claimed it for his own, even in Sammath Naur the very heart of his realm, the Power in Barad-dûr was shaken, and the Tower trembled from its foundations to its proud and bitter crown. The Dark Lord was suddenly aware of him, and his Eye piercing all shadows looked across the plain to the door that he had made; and the magnitude of his own folly was revealed to him in a blinding flash, and all the devices of his enemies were at last laid bare. Then his wrath blazed in consuming flame, but his fear rose like a vast black smoke to choke him. For he knew his deadly peril and the thread upon which his doom now hung.
From all his policies and webs of fear and treachery, from all his stratagems and wars his mind shook free; and throughout his realm a tremor ran, his slaves quailed, and his armies halted, and his captains suddenly steerless, bereft of will, wavered and despaired. For they were forgotten. The whole mind and purpose of the Power that wielded them was now bent with overwhelming force upon the Mountain. At his summons, wheeling with a rending cry, in a last desperate race there flew, faster than the winds, the Nazgûl, the Ring-wraiths, and with a storm of wings they hurtled southwards to Mount Doom.
Frodo não parece ter sido um senhor de nada. Ele não está comandando Nazgull ou Orcs neste momento - claramente ninguém estava influenciando Orcs, nem Frodo nem Sauron, e os Nazgull voam ao comando de Sauron como sempre. A escolha de Frodo de colocar o Anel no último minuto em vez de destruí-lo não é retratada como sua heróica vitória sobre Sauron - é a vontade do Anel dominar Frodo e corrompê-lo a fazer a única coisa que impedirá que ele seja destruído. Frodo não é senhor de si mesmo naquele momento, muito menos Lord das Trevas sobre o domínio de Sauron.
@ A resposta de Werrf parece ter abotoado a opinião de Galadriel sobre a probabilidade de Frodo empurrar sua vontade para o Ring, mas vou acrescentar a outra contribuição do @Royal Canadian Bandit do comentário aqui - que já temos um exemplo da vontade de um hobbit versus a de Sauron, a de Pippin, através do Palantir. Pippin é forçado a comungar com Sauron, e embora ele resista um pouco, é apenas porque Sauron interpreta mal a situação que Pippin escapa sem trair tudo, como declara Gandalf:
‘All right!’ he said. ‘Say no more! You have taken no harm. There is no lie in your eyes, as I feared. But he did not speak long with you. A fool, but an honest fool, you remain, Peregrin Took. Wiser ones might have done worse in such a pass. But mark this! You have been saved, and all your friends too, mainly by good fortune, as it is called. You cannot count on it a second time. If he had questioned you, then and there, almost certainly you would have told all that you know, to the ruin of us all. But he was too eager. He did not want information only: he wanted you, quickly, so that he could deal with you in the Dark Tower, slowly.