I actually think that is a bad idea. The only time it would work properly is when the high rep user is an expert in that particular area, or when the well know

I actually think that is a bad idea. The only time it would work properly is when the high rep user is an expert in that particular area, or when the well known "deemed correct" answer is actually the correct answer. Not to be an iconoclast, but often the value of something like StackOverflow is that the "group-think" is wrong. You see this on support forums a lot, somebody with big rep comes in and answers and then that effectively ends debate even if the answer was unhelpful. Either the high rep user will get offended when the person tries to re-ask their question and start an "internet he-man contest" cough, or everyone else will just refer back to the big rep users answer, thus chilling their chance of getting the correct answer to 0.