You Are Not Alone is one of my fav songs on the album. I think that the fact that it hit number 1 with a bullet, and the fact that it was Michael, forced critics to look at the entire album, and end up whining like they did. It was a genius move by Michael that caused everyone to pay attention to the other songs. If that song wasn't on the album, critics would have an excuse not to pay attention to the songs with bite in them, because they could say they 'didn't notice' the album. Turns out the album sold remarkably well..and that's what counts. Critics were forced to face the music, because the album helped keep MJ in orbit in popularity, starting with You Are Not Alone. I believe the song was used for Sandy Hook elementary, which brought more people to Michael, and his teachings, and his goodness, and Thriller, and continuing the best sellingness, and, therefore, more enlightening of more souls by MJ's shining example, all at the same time.
MJ accomplished much, in the way of substance for so many human beings, by injecting substantialisms in songs such as You Are Not Alone, and, therefore, making harmless pop legitimate. You Are Not Alone ushered in social change. It served its purpose. Michael gave substance to something that once had no substance. Only Michael. So many artists before Michael wanted people and critics to pay attention to the 'more substantial' material, but the lack of popularity, when those artists tried to go into another direction, kept those artists from serving their purpose. For Michael, it was songs like 'Rock With You' that happened to have substance, and 'Don't Stop..' that had substance that positioned all of Michael's albums to serve the purpose that other artists before him, failed at. So, to me, Billie Jean is as important as Little Susie. A lot more people know of Little Susie, than they would have if some other artist did it, because of Michael's genius with pop sensibilities. He was able to give esoteric music the pop sensibility that others before him, and since him, could not do. That's why he's been and still is envied so much.