Sometimes a wrong answer is the accepted answer, sometimes a wrong answer is the most voted answer, sometimes a wrong answer is both at once. Should we make a list of those? The purpose would be that newcomers (and any member who hasn't already voted in those questions) would make up their minds and possibly correct, in the long run, the most upvoted answer. By correct I mean that a correct answer would come more voted than wrong answers.
So far I see that time does not necessarily make the correct answers float over the sea of wrong answers. When a new and correct answer is posted in an old question, people suddenly see the question (for the first time) and usually, apparently at least, upvote the most voted answer (which is wrong) and do not bother to read all the other answers. At least that's the impression I get when I see a "frozen" question which received no answer in the last months, suddenly gets a new correct answer and people restart to upvote the already wrong answer.
The question is then, how do one defines a correct answer? I don't know exactly, but I think you people can think over it and come up with a good answer to that. An idea could be "This question has an accepted answer that is tagged as wrong by X, Y, Z, etc. members on ....(date)", so if the wrong answer gets edited after the date it has been tagged as wrong answer, people will know it. Also, I'm not sure it's a good idea to edit an already accepted wrong answer to make it right. Because it would completely change its meaning and people voted it for being wrong, not right. So another answer would have to come and replace it as the most accepted answer.