Many times I've run into questions on SO that have a wrong answer accepted.
(Example: What's the difference between “LIKE” and “=” in SQL? (Note: The accepted answer has been edited to include the caveat mentioned in another answer.))
After trying to convince others, you realize that the person who asked the question got an answer they deemed correct and stopped looking after that. Even if there is a correct answer, it gets buried somewhere deep in the list, because nobody bothers to look at questions with an accepted answer.
Should I, as a high-rep user, use his powers to fix this? How would I go about this? Edit the original question? Edit the answer that got accepted to make it right?
Or just let it be? Internet is a jungle anyway.