The Church of Satan was on the right track in some areas (such as viewing Abrahamic God as evil and nonexistent), but in others it is clear that it is an incoherent "first attempt" with lots of contradictory statements, such as the belief in magic yet the disbelief in Satan, and its hatred of abortion despite its otherwise Social Darwinist leanings. More damning (no pun intended) is how the Satanic Bible (LaVey's work) simultaneously condemns the authority of "God" yet says that dictators are good Satanists. It was very much the views of a single man, Anton LaVey, which while not entirely without merit and LaVey not being necessarily a completely terrible person, are far off course in my view in many ways.

Anton loved Ayn Rand. Many TST members are appalled at Rand's ethical ideology, or lack thereof, myself especially included.

You'll find that in many areas, The Satanic Temple is diametrically opposed, and represents a much more coherent, logical, refined ideology, and wholly rejects social darwinism as mostly discredited, advocating instead for empathy and compassion, recognizing their evolutionary benefit.

What both organizations have in common is the demand for rationalist thinking, the belief in the immorality of God, the belief in personal freedom, and deriving their ideologies partly from the sciences of their respective time periods.