Yes, I recognize that the universe is completely indifferent to humanity (and life in general). Instead of accepting this, I wish to fix it.
Think about an ant in a busy railway station. If she gets trod on, does that make the commuter evil, or just indifferent to the ant's interests?
I'm going to say both, but that's a disagreement on definitions. To move this debate along, I'll use your definitions of evil and bad. OK, natural disasters aren't evil. Disease isn't evil. Aging isn't evil. They're all indifferent to us.
With that out of the way:
Would you prefer a world with more or fewer natural disasters? Would you prefer a world with more or less disease? Would you prefer a world where people lived shorter lives or longer lives?
I guess I'll end with a quote as well:
The Patrician took a sip of his beer. "I have told this to few people, gentlemen, and I suspect I never will again, but one day when I was a young boy on holiday in Uberwald I was walking along the bank of a stream when I saw a mother otter with her cubs. A very endearing sight, I'm sure you will agree, and even as I watched, the mother otter dived into the water and came up with a plump salmon, which she subdued and dragged onto a half-submerged log. As she ate it, while of course it was still alive, the body split and I remember to its day the sweet pinkness of its roes as they spilled out, much to the delight of the baby otters who scrambled over themselves to feed on the delicacy. One of nature's wonders, gentlemen: mother and children dining upon mother and children. And that's when I first learned about evil. It is built in to the very nature of the universe. Every world spins in pain. If there is any kind of supreme being, I told myself, it is up to all of us to become his moral superior."
-- Terry Pratchett, Unseen Academicals