If we took medium facebook twitter instagram reddit and steem and drawed up pyramids of income earning including all forms of engagement, steem would be the only one without millions upon millions of unpaid slaves at the base. No don't get me wrong, its not perfect here, but compared with the other sns / blogging comparing it is like comparing a slave plantation to a medieval serfdom
And even the high earners on the other platforms are taking only a small fraction of what the platforms are taking themselves.