I'm curious to know what Ringo's opinion on Ink and Nightmare are after they....uh, 'saved' him.
(Since Ringo isn't, uh, comfortable answering this kind of question, I'll do it for him.)
Once the reality of his situation sunk in, Ringo was a mess of mixed emotions, and he did his very best not to direct them at Ink. After all, Ink was his friend. He only did . . . it . . . to help him. Sure, the method was . . . questionable, but his non-exsistant soul was in the right place. (But if Ringo didn't look as happy to see Ink as he was Dream while he was recovering, no one made a big deal about it.)
As for Nightmare, his opinion changed as well in a slightly more positive way.
Don't get me wrong, he was still very wary of the gooplord and by no means trusted him or thought he had only good intentions like Ink. But the fact that he agreed to help them, his enemies, and even sacrificed his own magic to do so gave Ringo hope that Nightmare wasn't completely unreasonable. That maybe a truce was possible.
At least that way, something good could come out of his being corrupted.