It gets even better when you ask where the parents got the money. Since its a closed loop you can't really create money from nothing.

Let's keep things simple, say the rich parents own all the shops and services in the town. All their money comes from the other parents of the town. The poorer parents have no choice where to buy things like food that they need, they can't not pay their water bill or their heating. Buying their kids clothes and toys means giving more of their money to the rich parents. Now most of the parents can only afford a couple of eggs and the rich parents can afford a ridiculous number.

The ability for some to make large profits off humans basic needs is wrong and if you say any of this is fair then you should try and figure out why you think like this.