She might realize she is richer than others but I doubt she understands how privileged she is, as you said. Where I live, COVID hit us hard and still does, which made it very difficult for me to find a part-time job as a student in order to continue paying my rent and bills while having all of my classes on Zoom. It was terrible for so many students who had to move back to their parents who don't always have the best Internet connection or a quiet place to study, among other things.
I had no choice but to stay where I currently am because I have no other choice, my father would be unable to help me because he lives in a different country at the literal opposite end of the world (he went back to where he grew up once I left him for studying abroad).
I know I would be able to come back if I had no other choice and I know I'm very lucky to be loved by him so he would always help me if needed, but personally, I would feel terrible about it because I would feel like a weight to him (but it's only how I see it, and I understand it might be different for everyone).
I'm not saying Ruby is a weight to her parents and I don't think she is seen as such when I check Mother Granger's blog (which is obviously a very good thing), but the biggest privilege she has is to be able to run back home whenever she wants while not feeling like she's in the wrong for that. For her to be so emotionally dependent of them without thinking it's abnormal, or that they might want her to act different. I don't really know how to properly word my thoughts and I actually don't want her to make a stupid Instagram story saying how grateful she is for having such a supportive family and all of her usual nonsense, but when I said how she needs to humble herself, it was in reference to all of that.
Ruby, no-one is saying you're in the wrong for having a caring, loving and supportive family who happens to be wealthy and will always get your back no matter what happen to you. Being able to feel secure thanks to the people you love the most is, in my opinion, the greatest feeling in the world. But you refuse to acknowledge that properly. You're closing your eyes at people asking you to stop bragging all the time, even if you try to sugarcoat it with a layer of fake humility, and you always want more than what you already have. And I'm talking about wealth, here.
With your position, it would actually be so easy for you to do good, to give back all the money you stole from charity, to be honest about the ads you do and to give this money to a cause you want to defend. But months after months, despite you reading all of your Tattle threads religiously, nothing change if not to become worse. So who knows.