If a person appear for a software profession, and in the interview if he or she is questioned as how the computer development proved disadvantageous to society? How shall one answer the question?

There are many disadvantageous. But to mention a few are:
1. Use of mails should be for communication purpose. BUt during official time some people tend to use it for chatting and there by make lose of their productive time and effort which in turn affect the productivity of their work
2. Use of Internet by browsing unwanted sites harms the work and society
3. Using knowledge in unwanted way lead to the development of virus and hacking of system