Technology
I saw a kid, who was using some machinery on his ears. That small 'computers' made him able to hear. Since he hears using those, his speech was not that good, because speech is just imitated hearing. But, can you imagine how happy it is for him and for his parents that he, who most probably could not hear and speak without those devices, can now both hear and speak? If, the technology can greatly improve even only that one person's life, then it is worth. From now on, no one can tell me technology is making things worse...
And by the way, computer science rocks :)