Working for nothing x 2

Did I spot a contradiction? 

As business rushes forwards with automation, 

employing people for fewer hours, 

or not at all, 

employees will have less money to buy the goods produced by more automation?

It has been pointed out that all social media have solved a core problem of capitalists: 

the need to pay people who work for you. 

Every message we post is us working for the Big Four for nothing. 

We work for nothing to make the product saleable to advertisers.

  #neat