Being a tolerant fellow, I am going to endorse a view on this I just found, via Google, over at Democratic Underground (the infamous DU):
the mass media are guilty of blowing this story out of proportion and leaving misconceptions about the Reagan astrologer in the popular consciousness. People have been led to believe that Quigley had a personal say in Oval Office decision making, that she maintained direct contact with the president, and was responsible for developing and implementing policy according to the heavens. As best we can tell, this was never the case.