Givewell did an analysis and concluded that while this is a problem, it's not nearly enough to offset the benefit which comes from using the nets for their inte

Givewell did an analysis and concluded that while this is a problem, it's not nearly enough to offset the benefit which comes from using the nets for their intended purpose: https://www.givewell.org/international/technical/programs/insecticide-treated-nets/fishing-with-insecticide-treated-nets https://www.givewell.org/international/technical/programs/in... Certainly improving public health in developing countries is a hard problem! But it's not impossible and existing efforts have had an effect.