Well I remember watching a documentary with some of the people that are racing to create AI. They asked them if they knew the dangers of AI and what it will be able to do (be a million times smarter than us within days) and they said they knew the risks but were willing to do it anyway. They just want to be able to say they achieve it regardless of what happens to everyone after. I think Elon Musk knows this and is trying to slow it down as much as he can. :/