The early nineties was a crucial time for the war on drugs in the USA, sadly however, the Partnership for a Drug Free America only managed to put people off eating eggs.
If "sanity" means good adjustment to particular circumstance, it's a highly relative thing. But is it really that simple?
Naked androgynous cavemen and evil plotting Egyptians were the stuff of historical fantasy in the late eighties. If you look closely (click on the image for a bigger look) you can see a female explorer pointing out the lack of reproductive organs...
As a good teacher once said. "Nobody can teach you anything. The best I can do is to help you learn." 
Before JJ Abrams there was Simon & Schuster, creating cutting edge Star Trek computer games for IBM, Apple and Commodore computers. Cutting edge, text based adventures...
It seems that back in the early eighties, before Richard Dawkin's rise to popularity, the connection between humans and apes was still allowed to be in the realm of science fiction and not science fact.
Despite sounding like a dance craze, you can tell from the campy photo that this was a serious novel, written in a time when you could have an Evil Arab overlord without running the risk of death threats from radical Muslims. Things had gotten so bad on earth, that 'Even in Hell there are some things worth fighting for..."
