This is the problem with large businesses; they can always say the supposed positives to the majority outweigh the real harms they are doing to a minority. Don't you think inducing people to click on stuff over and over with absolutely no skill is unethical? Comparing "social games" to other harmless diversions is like comparing a culture of drinking a few beers at the end of the week with a culture of encouraging people to drink as much as they want.