Many people provide services and goods to clients and customers. This may be as a business owner, or as an employee.
Either way, your clients and customers are a part or your team. Without them, your wealth creation prospects are reduced significantly.
As with any team member, investing the time and effort to find out what your clients and customers think of your services and products enables you to continue to support their needs.
Through this, they look after yours by using your services, and paying for them.