I would just like to add some perspective having working with nurses for 35+ years, and being married to one.
What your grandmother experienced is unfortunate. This is exceptional behavior, and not in the good way. When we hear about these situations whether it be on social or the mainstream media, it makes news because it is highly unusual behavior. It's always the "outlier" and unusual cases that grab attention and headlines. It is not the norm. The vast majority of nurses are going to be your best advocate, and when I say this, on the order of 99+% of them. Nursing is a calling, it's not a job for most. Believe me, my wife comes home when the job is done, not when the clock says it is. My wife knew she wanted to be a nurse as a small child, and she followed through, and is highly trained and goes out of her way to actually know her patients as individuals.
Healthcare Tip: Having said that, I want everyone reading this to understand that if and when any of us or our loved ones are admitted to the hospital, if you and your nurse are even having "personality conflicts", please DO ask to speak with the charge nurse on the unit. There are often multiple nurses on the unit taking care of many patients. The charge nurse has the authority to swap assignments and you can get another nurse. Please do not feel that you've lost control of you or your loved one's personal health care providers and you are stuck with "a bad person". That said, please be specific with your complaints when talking to the charge nurse. Don't be "wishy-washy" with "I don't knows" or he/she "rubs me the wrong way". Be specific, something that is tangible that the charge nurse can discuss with this RN and perhaps correct behaviors. The same thing goes with respiratory therapists, doctors, social workers, or anyone else on your health care team. You can have different people take care of you, but it has to be something specific and identifiable in order for this to happen.