Surely there are, say, British, European or American FIFA representatives who can be tried for taking bribes, or for being part of an organisation which takes bribes? Why are those people immune? They're complicit.
For better or worse, it's one country, one vote for a lot of this stuff. You can bribe the entire Caribbean for the cost of bribing France (Qatar did both).
https://www.justice.gov/opa/pr/nine-fifa-officials-and-five-...