Hosting the World Cup in Qatar was proof that money is what defines the course of the biggest football event in the world.
FIFA CEO sacked? That's the least that should happen, don't believe that corruption ends there, because this was just a "deal" made because someone needed to be punished, but I'm sure there's a lot more rotten garbage in Fifa than just the CEO.
I believe the 2026 world cup will be "less corrupt" as FIFA needs to clear its name after what happened in Qatar.
At the end of the day money can buy anything, really.
The whole purpose of FIFA is to maximize their revenue through ticket sales, sponsor deals, broadcast licenses, merchandise, etc.
Decisions will be made based on dollar values, that's for sure.