Why would the Epic of Gilgamesh want to sell you something? In contrast this Sriracha story clearly does want to sell you something. If you want to use an analogy at least use one that makes sense.
Isn't this what you're doing with the idea that the Sri Racha story is obviously meant to sell?
Because people have made posts on social media sites like HN in the past in an effort to change public perception of companies, right?