There's always the choice not to participate in some activity.

Among other things, that would have solved the Great Depression, World War I, and Germany's hyperinflation in the thirties. Also AIDS.

Yep, Linkrot is right up there.

This comment suggests you don't understand my point. Which is basically that people will act in their own individual interest even when its obvious that if everyone does the same thing, bad things are the inevitable result.