Yes sometimes we may not think about the future enough, however I think it's generally positive, I would have love to have been able to screen our DNA and edit out any potential life threatening, congenital ailments our daughter might contract in the future.
The problem at the moment is it takes an extremely long time to mimic and indeed work out how proteins fold, which is the key to working out DNA. I think once quantum computing kicks in, those problems will disappear.
I hear ya though about playing god :-)