I don't understand this complaint. Facebook should avoid offering job advertisements because... some people won't use it out of their own choice, therefore classism? Maybe I'm misinterpreting, but I can't follow the logic.

Both LinkedIn and Facebook accounts are free for anyone to create and use to their full extent. How is this service not a net positive if it gets people legitimate jobs? Is that not competition? Isn't more options a good thing?

I mean looking at so called Temp Work companies: in some sense they arbitrate jobs. Most of those happen to be quite low end. Speaking of Germany, when these are "hands-on positions" in big companies they compete with non-temp people. The difference is that they have worse pay, less insurance coverage and generally less say.

Others already made statistics and articles about this topics. It seems the workers loose.

Or neither account should be necessary to get along in this world.

But you raise a good point about it having the potential for being yet another class marker.