Please use better logic. Also, fetishizing ancient things is an impediment to progress.
The long term survival of the human species in the presence of something is (weak) evidence that the thing isn't harmful, but the logical inversion isn't true. That is, the survival of the human species for a long time without something is neither a valid argument for nor against that thing's benefit.
Unless of course you believe that producing/consuming Soda is HELPFUL in a sense that it is helpful towards economy (someone's making and people are consuming it). In this case, I have no argument here because the intent is clear enough.