Hey owners: you know why there's "parity" in other sports? BECAUSE THEY'RE DIFFERENT SPORTS! A superstar in Baseball or Football is one guy in many. A superstar in the NBA is one among 5.
You want parity? Have the playoffs be one-and-done. Scrap the playoff model and just have a fucking massive NCAA type tournament. Oh, you don't want that? Because profits would go down? I guess it wasn't about parity after all, was it?