Here is a great short video animation on how Bitcoin can stop war. This is probably one of the best contributions by the people which developed Bitcoin for humanity. Soon we will see even bigger platforms which will improve our quality of life.
Although Bitcoin eases up the trade so much that it allows criminal transactions, but truth is, cash would be used for these cases. Bitcoin is not so anonymous nowadays, so its getting much harder to do.
I truly believe blockchain technology is one of the most disruptive, its maturing faster than most new technology sectors such as AI. Blockchain technology will allow us to take our power back, and its already doing so, bitcoin, steemit, DGD, etc.