Well, of course! Why do you think we have not been invaded by aliens? They do not want to risk their Pepsi supply! And not just to aliens! I head to other dimensions as well, giving them fresh otherworldly Pepsi!
Have you ever played Doom? You know how Hell invades that world? Well, that is because that world is a world without its own Pepsi Man. That won't happen in this world because Pepsi keeps the demons sated and at bay!