My best guess is that Elvis would be sad because of the way people may view his daughter. She is his child and he cared a lot about her.
People make mistakes, let's accept that. Lisa-Marie made mistakes too, but no matter how much you hate or reject a person for doing it, it is not going to help anyone. I think that Lisa-Marie would be able to love someone if she'd only just find the serenity and the rest she needs.
I certainly do not agree with her on some subjects, for example: the swearing not really being of an example for the children and the crazy, sometimes dangerous lifestyle she is leading. She needs focus and inner reflection: she could develop into a better singer if only she'd decide to put her mind and devotion to it. Remember Madonna had a terrible voice to start with and is now being idolized and diefied throughout the world? If Lisa Marie would start taking Roy Hamilton-like singing class, she could become a classical singer way better than Madonna is now, maybe able to sing in opera or with aria's.
I'm not saying that people should have a mentality of anti-pleasureness.. But I guess I make my point clear when I say that drinking an healthy glass of red wine is better than doing coke and sedatives.
Even smoking marihuana responsibly, like Willie Nelson does, is better for a human being than doing coke from the streets or taking a lot of pharmaceutical junk. The blacks from Africa knew the medicinal effects of hemp too, but too bad some racists said it to be 'dangerous ****** crop' and banished it, trying to protect cotton industry. But that is a completely different story..
The point is that I would like Lisa Marie to complain less and develop herself more! She's more loveable than she actually thinks she is. Let go of that bad karma, Lisa..!