Well I think that the mythologies have affected us not in a very significant way. Mythologies are just stories and legends to explain how things occur. For example sickness was caused by demons and monsters and humans were thought to be created by gods as labourers. Of course these stories are not true but if I were a Mesopotamian back it that day I would have believed it.
I don’t think the mythologies of Mesopotamia is useful to present day because most people believe that we were created through evolution not being build by gods out of clay. It might be useful to more religious people. People still believe in gods and afterlife because there are so many religions out there, like Christianity, Jewishism, and Buddhism. My thought is that the mythologies of Mesopotamia paved the way for these religions, because they do have one thing in common, the all have a god or gods.
In the present day we still have stories to explain something we don’t understand. For example people believe that beings from other planets are visiting us due to the witness of strange lights zooming across the night sky. It is very similar to the mythologies of gods having supernatural abilities. Maybe the beings from other planets were portrayed as gods in that era.
In conclusions the mythologies only affected the religious people not most people. I’m not saying that people shouldn’t be religious but I prefer to not be religious because I don’t believe in god. Religion is a good thing it gets people together and you learn stories from the bible.