This is a very common misconception of what “need” means. Pepsi meets very deep human needs, or we wouldn’t buy it. What needs? One trick that often works: look at the advertising, not the product. https://twitter.com/alim1r/status/1264163916172550145

Airlines meet the need to relax (vacation ads), the need to explore (adventure ads), the need to be successful (business travel ads). No one needs to be trapped sitting in a seat worried about leg room for 8 hours, but that doesn’t mean no one needs what airlines sell.

Similarly, people need things Pepsi offers. Exercise for the reader: what do Pepsi ads show you, the way airlines show you an exotic locale or a meeting of the powerful business people in a high rise? What need is Pepsi meeting?