Damore was fired because he was bad for business. Not because he's white, male, conservative, or the contents of his memo. Had the memo not been leaked publicly, I have no doubt he'd still be working at Google and his memo ignored and/or forgotten. He simply became too much of lightning rod for Google to continue to employ him.
Google will settle for the same reason. It is better for business to pay him off and make sure he never talks about it again, than to drag this out.
The only people who will be financially better off in this whole deal will be the lawyers, and nothing will be resolved in reference to the larger issues surrounding this case.