Let me tell you. I have come face to face with this feeling. I have traveled and looked for answers in almost every religion past and old known to man, I have looked into the hearts of people, talked to people both who cause suffering and who are suffering, I have reached out to people, have volunteered my services and all. The solution to the problem we came to was the same that you have come to. No you can’t change the world, you can only change -you- be a light unto yourself and the whole world will slowly but surely, incrementally start to follow. Good post!