One of the reasons I would never collaborate with anyone at MIT is that such collaborations are rarely equitable. Institutionalized credit theft is just the beginning, but yes, if there is joint work with MIT, usually the non-MIT researcher does the bulk of the work, and the MIT researcher gets the bulk of the credit.
Everyone wants to work with and associate with institutions like MIT, so MIT gets to pick the biggest fools.
(This isn't unique to MIT; that's true of many of the elites)