It all starts with a strong, documented values statement that is taken very seriously at every stage. This means enforcing it and using it as a basis for reviews, bonuses, and promotions in a visible way.

Here are more key component of a process that will work:

1. Training for employees in this and your company's value proposition. Including ethical behavior for long-term, mutual benefit. A win-win relationship with customers, not a transactional one. A culture of customer service. Employees are not allowed to bad mouth customers. That is attitude and can run off the rails if not limited.
2. Use video recording Learning and Development system (LMS) for consistency and easy initial training to guarantee every employee is trained and tested properly.
3. Have a customer feedback loop, like listening in on calls, as Amazon executives are required to do. What is watched is taken seriously. This is called the Hawthorn Effect. i.e. a sign-out sheet on the supply cabinet reduces theft because it...