For all the people who have said change your career, I applaud your attitude. However, I am compelled to state the counterpoint. Such change can inolve a great deal of risk. Typically, this risk is financial. Many people are the sole wage earner in their family, supporting kids, some who have "college tuition" written all over them. When other people are depending upon you, sometimes "change" does not seem like a practical option because the risk is too high.
While I myself am not in this category, I am very sympathetic with the many thousands of people who feel trapped. Dismissing this as "victim mentality" can be oversimplifying a complicated situation. There is no one answer that will fit every situation. Each person must weigh security and risk. Perhaps the real trick is to devalue our sense of security and find ways to minimize risk (like having 12 months cash savings).