[rapind]

I would assume big streamers are running a business too. At the very least they are paying an accountant and probably lawyer (for incorporation, taxes). I'm sure some are also paying designers, editors, marketers, advertisers, agents, managers, etc.

On youtube you have streamers merging under the same umbrella to create branded channels.

IMO the differences compared to Disney is the scale of the production and the interactive medium (which is constrained by scale). Once you reach a certain scale I don't think you can expect much direct interaction due to the volume of chat. So really it's just scale.