I'm not talking about revenue. Football isn't really an industry, and it's not rational. If you want to compare the cultural and social footprint of football to something it's video games as a whole, not EA on its lonesome.
I mean you could probably supplant the entire FIFA organization with $10B if you wanted to take a really big swing. Money talks and if you funnel the right amount of money to the best players you will create the best sports league.
The biggest clubs in the world tried this several months ago - the $3.2 billion European Super League didn’t even last a week before it fell apart.
FIFA survives because it effectively sanctions competitions at every level. Take Manchester United: they play in the English Premier League. That competition is sanctioned by the English FA - a member of UEFA, the European body of FIFA. If United make it into European competition, they play in a competition organized by UEFA. Their players represent their national teams all over the world, and compete in matches run by UEFA, CONMEBOL, and other FIFA governing bodies.
When Manchester United announced they were joining the Super League in lieu of the UEFA sanctioned European competitions, the FA announced that they were at risk of expulsion from the English league structure because the FA bylaws say you can only play matches sanctioned by FIFA/UEFA - essentially pulling the league and cup competitions away from them and turning them into a glorified exhibition team. And the fans went ballistic at this, for good reason.
Was the ESL a trial balloon? Almost certainly, and we will see something similar, possibly to just force UEFAs hand in negotiating things like revenue sharing. But supplanting FIFA would be much harder than “throwing money at the problem”.
Those players would be excluding themselves from all known international football and from transferring to and fro all current clubs and leagues on earth. That would be _complete suicide_. They'd become nobodies overnight.
10B probably isn't even enough to buy out the PL, much less the world football pyramid.