To be fair, the animal neglect isn't a huge part of the story. I just watched the documentary. There were a lot of people living in that house, eight children I believe, Jackie was clueless, she was like, "I never knew about nannies when I was growing up, but as soon as I knew about them, I kept having children."
They had a huge house with a staff of over 20 people. When hard times hit, they had to fire most of the staff, leaving only the nannies, who then had to do everything, cooking, cleaning, taking care of the children. One of the kids kept saying, regarding the lizard that she kept asking to go to the pet store, but no one would drive her there, another kid said, "I didn't even know we had a lizard." What they needed was a smaller house. Good thing they weren't living in Versailles.