Lucas and Roddenberry were both hacks stealing from Harlan Ellison.
Even though his script was changed and Paramount has made bank on the episode, Ellison has elected to move on from the disappointing experience. “They’ve made all manner of tchotchkes and geegaws out of it,” he said. “And the fact that Paramount and their heirs have made millions upon millions off me and I have made only thousands and thousands is something you learn to live with after, what?… forty years. If you don’t learn to live with it, you are a petty person, and I live every day in hopes that I will be just a little bit smarter than I was the day before.”
Do Sturgeon, Bixby, Spinrad, Matheson and other sci-fi icons who contributed to Trek ever whine about the money Paramount made off their stories?