Quote Originally Posted by Lenna
That could be debated actually, Vincent's story isn't really told in detail with anyone else. No one really makes an effort to save him from anything, he struggles with the guilt throughout the game, he talks about it, but I don't recall anyone helping him other than taking him into the party.
It could be said the simple companionship shown to him by the party, in a way, help him through. By simply leaving him, as far as we can guess, he would simply have stayed in the coffin forever.