George Lucas was a great admirer of Joseph Campbell and openly admits that his writings were a major influence on the Star Wars movies. He has spoken about this in interviews several times. The human psyche hasn't changed for thousand of years and still craves hearing about the myths. The myths of old are what gave us the religions of today as well as the block buster movie plots.
In ancient times as today, people have always asked the five main "W's" who, what, when, where and why. Those questions are the premise of all stories. Our thrust for knowledge and entertainment has always been two of the strongest factors that separates us from other mammals.
In ancient times these stories or myths were easily believed because of the lack of ability to disprove them due to limited knowledge of science and a poor line of communication of the time. The myths were passed on by the main source of news and information at the time. That source was the traveling merchant who visited far off lands and brought back strange and mysterious goods and also strange and mysterious stories. Then around triable camp fires these stories were passed on and embellished for entertainment purposes. This is where we got, men who walked on water, talking snakes, world wide floods, the sun stopping so an army could be defeated, men resurrecting men from the dead, seas splitting in half so the good men can escapee from the evil ones, angels, demons, devils and gods. It was a great source of entertainment and a poor source of history. It all was based on the oldest and most loved plot of all, good conquering evil.
What would Star Wars be without The Force, Darth Vader, Luke, Yoda, Obiwan, or any of the other interesting characters? Would it have been as successful if they did not display super human capabilities and show how good eventually defeats evil?
The same goes for The Holy Spirit, Satan, Jesus, Krishna, Buddha, and Moses as well as other prophets of various religions. Who would have thought Moses was a great man if he did not turn a stick into a snake, bring about the plagues of ancient Egypt or split the red sea in half to save the Empire? Or Jesus and Buddha were truly not sent by god because they both raised the dead?
Or Satan was the ultimate bad ass because he had an odd fruit faddish and became the main reason mankind is doomed? Or we could simply call on the Holy Spirit (AKA The Force), to give us the strength to mentally defeat the enemy within ourselves?
The stories haven't changed throughout history, only the names of the characters, the place it is told, and medium used to tell the story. The only difference today is, some of us accept that Star Wars is just a story.
Dave