I find this to be the most compelling argument, because it cleanly positions privacy advocacy as a charitable rather than selfish act.

I believe that individual privacy as a social norm is a prerequisite to free speech, that free speech is a prerequisite to democracy, and that democracy is a prerequisite to fairness in the world.

Advocating for your own privacy is worthwhile if only to provide herd immunity for others less privileged than you, and to send a message about how you wish others would act; to demonstrate popular demand, and to lead by example.