I'm not sure what you are saying. I think you are saying that altruism requires self-sacrifice, and that self-sacrifice is not self-serving. But this is silly.
Altruism doesn't have anything to do with self-sacrifice. It is about doing an act that benefits others. Saying, as the person I was responding to said, that someone is not altruistic if they do something "just because" that was their passion, and not because it would help others, is myopic.
Then there's the evolutionary biological sense of altruism, or the philosophical variant of "Pure Altruism", requiring that you suffer for a gift to be truly selfless. People who get really bogged down in this kind of nit-picking would do well to go outside and breath deeply. (points at self)