When Netflix was a startup, the disruptive idea was sending DVD's through the mail as often as you liked for a fixed monthly fee but only so long as you never had more than two at a time. YouTube stopped being a startup when Google bought them almost a decade ago. Since, it's seen incremental change but hasn't disrupted anything.

Neither was built on the value of exclusive rights to content. My understanding is that this is mostly true for s Steam as well, but I don't know as much about its evolution. MLABAM didn't go through an accelerator so RoboCop is riding a unicorn on that one.