You can help all of them by reporting them and spreading the word to other people about the horrible conditions of the store. Stand outside the store with a sign or hand out information to people entering the store about the proper care of those reptiles in the store. Just don't give them money. If you buy one you'll only be giving them money to get two more to replace the one you just bought. And then you have two suffering animals in the place of the one you took home.

Trust me, my friend and I are going into this one petstore with cameras and pen and paper and writing down everything we find wrong and taking pictures as evidence, then we are going to report them. That is how you handle a cruel petstore, not give them money.