Many shows explore human nature and society's ill.(including racism) Not sure how much it commented on the impact of science on humanity. It mosty just gave a 60s issues a glossy coat of paint and commented on them. Did it predict the PC or just work stations tied to a main computer?No it hasn't. It used a lot of the same plots as the Westerns and Cop shows that came before it. As well a few tropes found in SF literature.(Though it was decades behind in content) It wasn't afraid to borrow from classic literature either. Its main claim to fame is being an hour long adult oriented SF show with continuing characters rather than an anthology. It had variety too: Action adventure, comedy, social commentary and on occasion speculative science. No episode or film needs all of these (or even anyI'm sorry that you view Trek that way. Star Trek has always gone politically, socially, and scientifically where no one had gone before.) to be Star Trek or science fiction.
Star Trek explored human nature, and science's impact on humanity. It predicted technological advances such as personal computers. It explored society's ills, such as racism. I'm not going to go into the whole of Trek but the show aside for trying to entertain did more. It brought some intelligence. Was it entirely original? Of course not! Few things are.