Kind of a silly comparison. Most beers have just four ingredients: Barley, hops, yeast and water. Can't get much more pure than that. Soda pop has enough chemicals to eat through rust and is just plain toxic to the body. I've never had soda pop in the house and told my kids I'd rather have them crack a can of beer then a can of soda pop.
Malting the grain , (usually barley but can be corn, wheat, oats, rice etc.) turns the starch into sugar, fyi.