There was a time when most companies followed the Golden Rule out of the belief that treating customers right created brand loyalty and repeat business. But many firms have lost their service component, especially as automation replaces human contact. As a customer service expert, Jeanne Bliss has spent her career helping major companies learn how to behave in the best interests of the consumer. She’s put her expertise into a new book, Would You Do That to Your Mother? The “Make Mom Proud” Standard for How to Treat Your Customers . She joined the  Knowledge at Wharton radio show  on  SiriusXM  to explain how increased competition makes customer service more important than ever for businesses that want to grow. Knowledge at Wharton: You have spent more than two decades working as a chief customer officer. Tell us about your career.…