She's still too "present" to be a "respectable music legend" yet. She keeps getting up people's noses and causing a ruckus, and as long as she does that instead of doing Great American Songbook albums and taking a keen interest in knitting, she'll still be done a disservice by people.
See: certain members in this thread who've allowed Madonna's opinion on their fave cloud their judgement of her extraordinary achievements. It's sad, really.