I really like the term purity spiral. It captures it quite well.

Alas, it seems this thread was flagged. Ironic given the content. But I'll continue to share that article about the purity spiral with others, it captures a lot of the things I've seen quite well.

There's no winning in these situations. Sooner or later they will implode into smaller groups and won't have much power. Look at the different Christian sects that came to be over minor theological differences.

The only way to win is not to play.

I very vividly experienced this in a communist society, and later in a religious society. It is always a safe bet to praise G-d or Dear Leader a little more than customary. No one will dare to challenge you. And after a short while this becomes a new average and a minimum requirement.

For a humorous example of this, there's the movie Office Space, and the fight over the number of pieces of flair that Joanna is wearing. She wears 15 pieces of flair, the company required minimum, compared to the boss' favourite, Brian, who wears 37 pieces of flair.