User blog comment:B214/Volume 22 spoilers/@comment-29778526-20170126060633/@comment-1359322-20170126090506

It's not like the leaders are fighting 24/7 against 666. There are so many of them, they could form shifts etc. 666 on the other hand is alone, it's fighting 24/7 against all those leaders, it'll still affect him someway. Besides they have Rose's equation, that could be used to their advantage too.