Joe, empathy in itself is not a solution to anything. You don't help the sick by being sick. You don't help the poor by being poor. You don't help other people's meseries by being miserable. You don't improve anybody's life by stopping falling in love, enjoying and appreciating life, or celebrating births, success, athletic excellence and all that is worth celebrating. There is no guilt in love, success, good health, or enjoying skating competitions. Do what actually contributes to improve the situation, sometime by taking immediate relevent actions, but more often by living a life congruent with your beliefs and against the contrition to poverty, poor health, poor environment, potential catastrophe, etc.
To fight darkness, you introduce light. To fight diseases, you stay healthy. To fight many problems facing humanity, stop over consumption. An example is not to be obese, which increases demands on natural and human resources. By living a healthy lifestyle, we help environmentally, politically, and economically. If we intend to live a long life, let it be productive rather than draining. Commiseration may feel good to some people, but it does not lift them out of the meseries.
There is not enough empathy to cover all the wrong and bad things going on. While you focus on and feel bad for the Japanese, Kadafi is celebrating the disasters by re-employing brute force against the people while the world's attention swifts. Do you then feel guilty and responsible personally and accuse the Japan sympathizers of being selfish?
I believe in focusing on the positive, in thoughts and in actions. Support peace, environment, as well as good health and quality of life for all.