Lazy Workers

I have just been to see my gran who has alzheimers in her LTC ward in hospital. I am sure she gets on well with the carers in a social sense as they are very friendly and joke with her and she smiles when they tease her and she teases them! HOWEVER, tonight the carers ordered chips in for their dinner break and sat with he residents watching tv, eating their chips. I thought this was real cruel considering the residents never get a chippy themselves but were forced to salivate at the smell of the staff dinner, also the staff were not available to residents who needed them. Secondly my gran needed the toilet (they dont know I am the nurse as I live far away and dont get to visit regularly, my twin sister who is a cop lives near and they thought I was her), I walked her towards the toilet and there were 3 carers watching a soap on tv, not one offered to take my gran to the toilet. I mean, of course I do not mind taking her as I do it all the time and I did it for her when she was at home - but those carers so not know my capabilities and what about health and safety. I also saw an elderly lady be turbed in her wheelchair to face tge wall because she was swearing a lot and another lady be put in a room and the door closed for the same. What should I do, you never see the nurses around and my mum says not to bother about it as my gran appears happy? Am I just seeking perfection or should I be worried?