Understandable the worrying and question, more when we know that Big Corp doesn't become big by been good, maybe Lawful Neutral, but mostly been Lawful Evil in D&D and meme language.
I feel uncomfortable, on one side, without a big corp involve give a more transparency that will be really for the people, since money is not a focus so all the exploit capitalism become a optional for the person.
On the other side, without a big corp to bring and push money to this open-source project, the probably to grow will be limit, since in the world we are oblige to have money to eat, and this limit can make impossible to become more accessible and popular.
Can be paranoid of my part, but I am worrying that Zuckberg and investors will want to take and make a patent of something like ActivePub.
The best option, for now, starting in creating a other protocol or accept that capitalism suck and eventually everything will be monetize.