Why do most modern businesses seem to care more about investors than customers....is this sustainable long term ?

I’ve been thinking about this a lot and wanted to hear other people’s perspectives, especially from those living or working in Western countries. It feels like many big companies today are no longer built around delivering genuinely good products or services to customers. Instead, the focus seems to be on maximizing short term returns for investors and shareholders, even if that hurts product quality or customer experience. We see this in things like price increases, worse customer service, more subscriptions, and constant cost cutting, while CEOs and executives seem more focused on stock prices and quarterly numbers than on whether customers are actually happy. Once a sale is made, it often feels like the customer becomes secondary. I get that profits and investors matter, but customers are the ones who create that money. Without trust and long term loyalty, how sustainable is this model really? Has capitalism shifted to an investor first system, or am I just seeing the worst examples? Curious to hear what others think, especially from people who work in business or corporate environments.