Why has everything got to be an "Evil Corporations" plot? I remember explicitly learning that sugar is bad for you from the food pyramid in elementary school a

Why has everything got to be an "Evil Corporations" plot? I remember explicitly learning that sugar is bad for you from the food pyramid in elementary school and implicitly from being told I can't have candy well before. If some companies tried to convince people that sugar is healthy they wasted their money. Every few years we get a new food bogeyman, so seems like whatever science is out there is far from conclusive. I have a hard time believing that the link between sugar and all these diseases is so obvious that it was found and buried by what is essentially a marketing department of some food company, while completely eluding every independent researcher out there.