IIRC a liter of Coca-Cola contains ~120g of sugar, and they need to add phosphoric acid to make it all go into solution. In fact, so much phosphoric acid that it makes a good de-rusting agent, i.e. any iron oxide (rust) will, after being soaked in Coca-Cola overnight, be converted to iron phosphate, which is easily removed with a light scrub. In addition, regularly consuming that much sugar puts you at high risk for type II diabetes, heart disease due to obesity, liver malfunction, and probably other things.

So no, absolutely do not want to drink what amounts to a toxic industrial solvent... though I did drink the stuff as a teenager before I learned all that, I must admit.

Point being, such advertising only works that effectively if you have a dumbed-down population ignorant of science, math, history and similar matters.

Here's a viable conspiracy theory, on that could very well be true: the attacks on American public education over the past 40 years are part of a deliberate effort to create a dumbed down population more susceptible to manipulation by corporate advertisers and state propagandists.