Massively difficult to change Facebook
The difficult thing about Facebook in particular is that now it is such a massively rich company it can afford many lobbyists to push their interests in government. It is also a company still run by Zuckerberg, because he managed to float the company, but only sell shares that had little or no voting rights. He retains the majority of the votes, so whatever he wants goes.
A classic "One man, One vote" system, where Zuckerberg is that man and has that vote (with apologies to Terry Pratchett).