The fact that your every action has some level of influence upon the future, means that you are accountable for the effects you indirectly cause. This, of course, applies to eventualities that you could reasonably be expected to foresee. Foresight has more to do with common sense, than intelligence. A fine example of this is the campaign against child labour practices, specifically involving the production of carpets in India. The probable alternative for these members of the Untouchable caste, is to live in the garbage dumps, where the children spend their days rummaging for items they can sell, and to find food for the family.
Competition is fierce, and life expectancy is short.
Introducing a large number of previously employed individuals into this situation would place severe demands upon the limited resources. In other words, a successful boycott would lead, not only to the premature deaths of many of the children and their families, but to the demise of many of the people already living in the refuse. Organizers did not invest enough thought into the situation. Most people already boycott hand-woven Indian carpets simply because they are expensive, and it is impossible to justify such extravagance. The solution to the child labour problem is far more complex than first appears, and is a topic too lengthy to cover here.