Statistically, nobody stopped buying Nestlé, this seems like a dead example.

No. That is the reason it's a great example. Nestle perpetuates horrors around the world and barely enough people know or care enough to even stop purchasing their products. "Voting with your wallet" is apparently not a very effective deterrent because it doesn't stop anything. Even a company who does as much damage to the world as Nestle.

https://www.zmescience.com/science/nestle-company-pollution-...