(Are there perhaps other possibilities I'm missing?)

Perhaps this as well:

• Strategically it seems a different set point for respectable opinion would be the best way to raise your own status

This seems very useful in times of revolutionary change and might explain why large groups of people update so rapidly when the old set point seems to be loosing but still has the upper hand. Trying to change a respectable opinion to a different setting seems a viable way dislodge and disrupt older alliances (as the members will not update simultaneously) allowing new actors to gain power and status rapidly. This may be particularly useful for anyone who "belonged, or still belongs simultaneously, to non-mainstream social circles (or alien societies) that have different status criteria for beliefs".