I live your frustration--though I'm not an altruist, rather an activist, and struggle to make our country a better place. At times it saddens me that my way of approaching the world, through compassion, empathy and love, often is seen as a sign of weakness, and I find myself taken advantage of both in my personal and activist life.
I ask God the same questions you do. I don't know if there is a God, and why God would make me so intelligent but able to feel so deeply. Nowadays I am at a truce with God, but I have spent a lot of time being very angry with God for making me the way I am. I think I may have finally moved past loathing myself, but when will I learn to love myself?