For Italians it is easy explained: our average level of foreign languages' knowledge is ridiculous and if a movie is broadcasted in Original Version most of the people will not understand a bit.. Things are improving with newer generations (e.g. various MTV sort-of shows are subtitled - in Italian) but it will take time, and I'm not sure we will be ever be at the same level of Northern countries..

On the other hand I could say that many Italian dubbers are very good compared to other countries (sometimes they are italian actors as well)