I actively boycott nestle and I didn't know about that 1977 thing. The don't believe water is a fundamental human right. They make so much stuff, it is tiring having to flip all new products over and look for that damn bird.
Also nearly every dog/cat food is nestle as well. Only the livestock feed Purina makes isn't tainted by nestle.
Because they can get away with it. Nestle has gotten away with killing nearly ten million children since 1960. https://en.wikipedia.org/wiki/1977_Nestlé_boycott
Companies have no morality. Unless someone holds them accountable they're going optimize for making money.