You should have looked at his vita for a more accurate description of his activities. If you had looked at his paper titles, some of them indicate he's not a stranger to social justice like theorizing and investigation, and likewise his funding sources, on top of Harvard's well-earned reputation: eg. "What’s in a forename?: Cue familiarity and stereotypical thinking", "Gender differences in implicit weight identity", "Deflecting negative self-relevant stereotype activation: The effects of individuation", "Me and my group: Cultural status can disrupt cognitive consistency", and the funding:
June 2007 – May 2010: National Science Foundation (BCS 0642448), "The neural basis of stereotyping", $609,800 (co-PI: Mahzarin Banaji)...September 2010 – August 2012: Templeton Foundation for Positive Neuroscience, "Vicarious Neural Response to Others as a Basis for Altruistic Behavior", $180,000 (co-PI: Jamil Zaki)
Sorry my mistake. As far as the paper titles goes.
As far as the funding goes the National Science Foundation isn't an entity that I would see as spearheading the social justice movement.
The same goes for the Templeton Foundation. They have the reputation of wanting "progress in spiritual discoveries" instead of "advancing social justice".
Jason Mitchell is [edit: has been] the John L. Loeb Associate Professor of the Social Sciences at Harvard. He has won the National Academy of Science's Troland Award as well as the Association for Psychological Science's Janet Taylor Spence Award for Transformative Early Career Contribution.
Here, he argues against the principle of replicability of experiments in science. Apparently, it's disrespectful, and presumptively wrong.
This is why we can't have social science. Not because the subject is not amenable to the scientific method -- it obviously is. People are conducting controlled experiments and other people are attempting to replicate the results. So far, so good. Rather, the problem is that at least one celebrated authority in the field hates that, and would prefer much, much more deference to authority.