Of course it will still make it go away. I mean when the lies started before the first lie the truth was 100% of the narrative. Despite this the lie being told and amplied caused the truth to "go away" (dwindle to a small minority)... So if lies can replace truth that is well established through these mechanisms why then can not the reverse be true? That once the lies dominate truth, if properly amplified, can cause the lies to go away?
Most processes in life are symmetrical, one thing we particularly struggle to understand in psychological contexts but is equally true.