Not every company is publicly traded, so they don’t have shares nor shareholders. Also, not every company is a massive behemoth who only cares about profit above all. Plenty of people start companies with the goal of providing something useful and good at fair prices and value their customer relationships.
We should really stop with this cynical view that every company is run by greedy bastards who have active contempt for their customers and using it to excuse the behaviour of the worst offenders.