In reaction to difficult people, some workers leave - only to find a new batch of difficult people in their new position. Whether you stay or go, you need to learn how to cope. The truth is that difficult people are everywhere.
Many people prefer to stay and work with someone who might drive them bananas but is at least predictable. There is much to be said for knowing what to expect from someone, even if it's unpleasant. Yet a manager who is truly driven by the desire to create a better organization - one that is a good workplace for its employees and a valuable provider of goods and services for its customers - will try to address the problems difficult people introduce in the workplace.