Just by sharing this with us here, you have "contributed something to society".
This is the kind of thing that makes other people here (self included) feel less alone and helps us feel a sense of community, connection, solidarity, belonging, empathy, understanding, etc., which is so important, especially in a place like this where there's so much suffering.
"Contribution" isn't always measured in dollars and cents.
Your presence means more than you think, and even the smallest interactions count for something.