Given it's saying she is an addict, that means she shouldn't feel ashamed of herself, she does have an issue of pathopsychology and neurochemical imbalances, she does need help, and certainly people don't shame addicts during an intervention and berate them for how disgusting they are, throwing their flaws in their face, and not even giving them a chance to understand their own situation.
Honestly, the ones like you are the ones who should be ashamed of themselves for wanting to mock and ridicule those who are medically ill. It's not different than going on about someone with a cold is gross and nasty because you can hear them coughing and hacking up buckets of mucus.