Not many people can ask themselves this question from an neutral position. Maybe no one?

I think we all must accept that we are biased when we try to answer ourselves this kind of questions. The reasons are multiple: in my opinion the two most relevant are:

1. We don´t agree on what means good or bad for humankind. For instance, is it good to lower the speed limit to 80 km/h in highways so that the accidents go down 50%? Some people may think it is good, some others will think it is not.
2. One of the most inherent characteristic of the human being is the subjectiveness. We don´t see the world how it is, we see the world how we are.

So, taking into cosideration those two facts, why even try to answer the question?