Assuming suffering is bad suggests there is some cosmic morality that the universe is judging us by. Perhaps spreading suffering across the universe actually doesn't matter at all.
You said "perhaps" it doesn't matter. Well, perhaps it does matter. If there is even a small chance it does matter, we might as well act like it matters.
...and so on.
Ah, Pascal's Wager.
There's a small chance that you giving me $100 matters, so surely I'm going to find a check in my mail box next week, right?