I think this is a good question to ask.
There are possibly many aspects to this question. Astronomy and seeking knowledge has lead to the development of space probes, space science, development of technology, it provides and evidence based view of our universe and context to societal and cultural understandings, it provides intellectual interest and pursuit to many, particularly at amateur level, to suggest a few.
What would a full list include of the positive aspects of contribution? How has an interest in Astronomy, or an answer to an Astronomy question, made a positive difference in your life?
Seeking specific answers and examples, not discussion.