Bribery/mutual backscratching/making it clear they'll look favourably on bribes for most of them, and a mixture of petty, golf club level, office politics and incompetence in the case of the British contingent.
FIFA say the 2022 World Cup in Qatar might be moved to the winter, because APPARENTLY IT GETS A BIT HOT.
Fucking hell! How do these people get these jobs....
The UKs "sports administrators" can't even do corruption properly. They combine a willingness to take advantage of large salaries and a whole trough-full of perks with a wierd, spavined, vestigial remnant of the amateur sports morality.
"by Jove, our bid for the world cup didn't win? I don't understand it, we had a nice video and some good stadiums. You don't think the most famously corrupt and venal sports organisation in the entire world was swayed by... bribery?"
Lets try to put the best light on things we can though. Maybe Qatar has only recently developed hot summers, and we're just confused thinking it's a desert country that's always had 35 degree plus weather in the summer months?