Any thing I missed?
You can help cure cancer.
For real, you can help scientists find a cure to life threatening diseases by joining folding@home endeavours. It's called folding i think because it simulates protein "folding" simulations that have multiple possible outcomes. Basically you lend your GPU to help find a cure to many diseases. Check them out:
https://foldingathome.org/Yes but usually miners are in it for the profits. And since they would be folding at a loss since they need to pay for the electricity most miners wouldn't use their GPUs for Folding. Even if the power was free, pretty sure most miners wouldn't Fold.
I think they have some incentive but its not material things, I think its more for internet karma and that's it.
There was some coin if I recall which instead of hashing POW it did some type of "Folding" but I forget what it was called. However since the value of the coin was low, nobody wanted to mine it. It was a good idea though.