I think, like other disruptive inventions of the past, there will be pain for many, but it will pass. Society will grow and adapt. There's some statistic somewhere I will paraphrase and/or botch that goes like: 90% of the jobs people have today didn't exist 50 years ago. I think no one can imagine what possible opportunities will manifest in the future. It's a lot easier to imagine everything that might go wrong because we evolved to see a sabertooth in the rustling leaves.