Masks or not, they're going to get themselves killed.
At some point, someone will resist being abducted and take one of them out. A mask doesn't stop a bullet.
It just hasn't happened yet.
How many of them will be brave enough to show up for work the next day?
In countries that collect church taxes on behalf of the church, it can be necessary to officially de-register your religion to avoid paying taxes to the church.
https://www.pewresearch.org/short-reads/2014/09/22/in-some-european-countries-church-membership-means-paying-more-taxes/