You're making the assumption that retailers want solutions for their customers. They don't. They want customers to buy their stock. This is about selling more

You're making the assumption that retailers want solutions for their customers. They don't. They want customers to buy their stock. This is about selling more stock. It's also about selling the attention of their customers to manufacturers of their stock. A customer at the store is two things, one is a buyer of the store's stock, the other is inventory to be sold to manufacturers. Grocery stores are self-service warehouses that sell access to their shelves to manufacturers. That's why manufacturers pay the stores for shelf access (eg middle vs upper/lower) and why staples like milk are at the back of the store, while good looking fruit and vegetables are at the front.