Technology is morally neutral. To use your own examples, a hammer could be used to build a house or commit a murder, and a drone could be used for aerial strike

Technology is morally neutral. To use your own examples, a hammer could be used to build a house or commit a murder, and a drone could be used for aerial strikes or to monitor endangered animals for poaching activity (http://www.aljazeera.com/indepth/features/2013/01/2013117135422298209.html http://www.aljazeera.com/indepth/features/2013/01/2013117135...). The initial use case for a technology to be developed will always be shaped by the morals and intent behind it, but other uses can always be found that are good or bad no matter what the technology is.