You're trying to get an objective answer from a subjective question. But to try to answer, what is better...to be alive or to be dead? Would you rather be alive in a polluted city or dead in a clean one? There's your answer.
Wrong deduction, because pointless =/= impactless What is the point of the Moon's existence? Nothing, it just exists. That doesn't mean it has no effect. The points go out, the impacts come in, I can explain that.
The correct, and only answer to OP's (and most philosophers') question is: collecting stamps. That is right, you heard it correctly, collecting stamps, putting them in a book, framing the nicest ones is the meaning of life. It gives you a full, well lived life, complete satisfaction and when you die, your children will be happy when they inherit your lifetime achievement. Start collecting today, you will be a better person...
The biological reason is to reproduce. (I'm not recommending it, or anything like that. Planet stressed as it is.) The psychological reason is something you have to make up. There is nothing that matters intrinsically. If you decide it matters, well, it matters.