"OH ADAM'S EGO, THEY'VE DEPOWERED ANOTHER STRONG FEMALE CHARACTER, WHY DOES DC HATE WOMEN SO MUCH!?"
Had a moment of what's passing itself off as "feminism" nowadays...
The Joker brazenly pops into Commissioner Gordon's office to let him know he's currently stealing the priceless carrera marble statue of Justice in front of Police Headquarters (almost everything in Gotham City was "priceless"; no wonder there's so much crime there). Sputtering with indignity, Gordon huffs, "Stealing 'Justice'? Have you no scruples, man!?" To which, the Joker gently replies as if to a little child:
"Oh, Commissioner, the cash value of scruples is zero; I prefer carrera marble."
Mythbuilding creators get this. Comic books, Star Wars, Buffy, Lord of the Rings, Star Trek, professional wrestling, soap operas: their value lies not primarily in the intrinsic worth of their individual episodes (Lord knows!) but in providing an epic/mythic universe in which those episodes take place and contribute richness and meaning. That what many readers are looking for: not mere stories (which one can watch in Lifetime movies or read in SF anthologies) but myths.Meanwhile, back in the Bronze Age, DC's attempts at building little worlds around each character and building one world around all of it had been started at different times and were hard to reconcile. When it all seemed to have past the point of diminishing returns, DC decided it would be easier to start fresh, and reboot itself with Crisis on Infinite Earths.
Many people crave not merely entertainment, but context, framing devices to help us understand and connect with the world around us, particularly when that world is complicated. They will create them, whether it's through ancient aetiological myths, Bible stories, medieval epics & ballads, or Batman: The Animated Series. People may not be able to take the whole world in with their minds, but it becomes easier to know what to do when you can simply ask yourself, "What would Jesus/Superman/Brian Boitano do?"
I think that is in fact what many people condemn as "geekiness": not reading such stories per se but using them as a framework for understanding the world. Well, you know what: screw them. They're mostly people who have given up on understanding the world, who have no need for a moral or conceptual framework because they don't make moral decisions or choose their ideas; they let others do that for them. Much easier to float through life on the wave of humanity, pausing occasionally to laugh at guys speaking Klingon or debating Supergirl's hemline. Which is too high, by the way.