This is a useful perspective, but not the whole picture. Quality drives a portion of sales. Technical ability to perform, create features, respond to customer

This is a useful perspective, but not the whole picture. Quality drives a portion of sales. Technical ability to perform, create features, respond to customer needs, and maintain a service contributes highly to quality. The technology and tools and process chosen enable that technical ability to a large degree. Therefore, some portion of your sales is driven by your technology. It's useful and important to think at a high level about your customers directly, at times. This is your UX role, doing user research and understanding all the intricate details and desires of your users. It's also marketing, understanding the market and who the target consumers are. It's also useful and important to ensure you get your process and systems right to meet that market head-on with the ability to solve the problem that you now understand. Ideally these are several roles communicating seamlessly. It's not always ideal, but that's the goal.