Jha intentionally used his skills to inconvenience those around him and he was able to do a great deal of harm to the world at large. While technology makes us better suited to solve problems and help those less fortunate, it also amplifies an individual's ability to do harm.
Intentional malice aside, all of us have the ability to greatly effect the world around us. It is imperative that we consider the impact of our actions. While I was a student at Rutgers, there was no mandatory ethics class for computer science, nor do I remember a class on ethics for computer scientists being offered.