I think I feel similar to AndrewKemendo. "Legacy" is a wrong word, maybe "positive impact" is better. Being a good dad is cool and nice, but if I had to chose one, I'd rather die knowing that I helped lift a million people out of poverty. Or even a thousand.

I get strong feelings of love and need for relationships, but I sometimes feel they're more of an hormonal failure mode than anything fundamental. I want to love and be loved, and be the best I can be for those close to me, but I don't feel that those in my immediate vicinity are somehow morally more important than all those random people I don't know.

I guess there might be no good answer, but the "common wisdom" is that to be happy, you should focus on yourself and your relationships as opposed to the world around you. Maybe it's a common sentiment, but there are people who genuinely don't feel that way.