Why makes it so compulsory for atheists to devote time to all of them ? What's the benefit of doing so ?
Well its not something that all atheists find important. But personally I think it is, as religious view impact people lives, how we do things in societies, moralities etc. Not a lot different than why we are interested in political views as I see it.
I don't think there's any logic without any benefit ? because, one NEVER go against something until that provides any kind of benefit.
Just today I fixed my parents bathroom, there is no benefits in me doing that, my father could easily have done it himself. Obviously you can argue, that it makes them happy and appreciative of my help, which in return benefits me, because it makes me happy.
But I think that is the same with any organisation or people helping others, it makes them happy helping other people.
Couldn't you ask the same about religious people, do they only devote time to God and their religion, because they hope to benefit from it? or do they do it because they believe that is right thing to do and it influence their lives and makes them happy as well?