In the grand scheme of things, the customer may have slightly more pull than the cashier ringing up their order, but it’s the CEO and the board of directors that control the narrative. That’s why we’re getting bigger and less fuel efficient vehicles, bigger and more fattening meal portions in restaurants, and bigger less affordable houses.
Most people misunderstand the meaning, it’s not each customer that is always rights, it’s the customer base as a hole, but even that is meaningless when everything is owned by a handful of monopolies so consumers don’t even have a choice.