We are all hypocrites, so who are we to judge?

Something happened the other evening. There is a girl in my group of friends who we shall call Claire for the sake of anonymity. Her friends and herself have been part of our circle for a few months now and suddenly she has been exposed to be a liar and a thief. I have been avoiding all the intrigue and recrimination as these are not close friends of mine however much they try to insinuate their dramas into my life, but I arrived at a party on Friday night and she was there.
Apparently she had confessed everything and was told she must apologise to everyone involved. I personally don't know what lies she has told me, but to be quite honest, I had never liked her based on what she had told me about herself. I had liked her because I liked her and I decided that wasn't going to change.
She is not the most mentally stable, she is young and takes a hell of alot more drugs than I reckon are good for her, especially if it really is true she has cancer. (Who knows???) Her friends are considerably older. They are a couple. Susan is her long-standing friend, who is willing to stand by her in spite of her lies, but if she changes her ways. Susan's boyfriend, Dave, is none too stable himself (actually none of them are, much as I like to meet them all occasionally at a party), and for some reason wants to get to the bottom of everything and pretty much take this girl down.
I apologise if none of this mess is very clear, it is precisely the details that they are so obsessed with that do not interest me. What interests me is the presumption of this man to suggest that this young girl get down on her knees to each and every person and beg their forgiveness for what she has been and done. This shocked me. The girl was crying and saying "I know I'm a terrible person etc etc". Thankfully it didn't come down to that rigmarole of begging for mercy in a room full of drug-addled people.
I looked around us all and said quietly to those who were talking to me about her "Look at us all. We're all hypocrites. Who in this room can say we haven't lied in our lives? Look at the lives we all lead, none of us are perfect. What right have we to demand prostration from someone else?" I didn't add that God always sees this girl as perfect and loved, He is the only one she need bow down to for forgiveness and it is our job to treat her as He would treat her. This is not to say that she need not apologise and make amends in time and where she feels it is in order, but to be humiliated in front of a whole room! The person who would expect that of her is worse than she ever is.
Everyone looked uncomfortable with her crying and I had to go home to get sleep for work the next day, so I took her with me and put her to bed. She was frightened and full of self-loathing. I told her not to worry and time would sort everything out. That she needs to get to the bottom of why she lies and steals for her own good, that that is not the way I see her because she has never given me any trouble. That it would probably do her good to stay sober for a bit while she sorts herself out. I asked her "Beyond all that, you know who you are at your very best, don't you?" She said she did. "Well don't forget that."
It was an odd point of view for me to take, but all the mess just didn't seem real to me. It didn't matter to me if she had lied to me in the past. I told her I had no interest in her explanations either just at that time as they weren't important. What was important was for her to feel safe enough to calm down and sleep. There was no condoning the action (especially if she has lied about having cancer), but I couldn't help but see past the action to the person, who is frightened and wounded and needed at that time to have her human dignity affirmed for her.