At the same time, while Black Panther and Infinity War look great on paper (even the force awakens) - when you compare to inflation adjustments you will see that these numbers will pale compared to some of the older blockbusters from the 70's/80's or 90's. I'm referring to stuff like Jurassic Park, Jaws, E.T., Star Wars or Titanic which were mind blowing.
Well they didn't really have as many forms of entertainment back then.
Which forms of entertainment are you thinking of? Movies, music and video games were all present in the 70s, 80s and 90s, and in general they all made more money than they do now.