Sorry but what happened 70 years ago is irrelevant to this discussion.How is that? Why would we even need a change if these things didn't happen? The whole point of change is to stop that. You have to look at the trend and where it's going.
England killed one of the worlds greatest computer scientists, Alan Turing, a guy who won them the world war because he was homosexual. This was in 1950. This is in a country with centuries of social developments. At least give Qatar a chance of a few decades.
What motivation does the qatari regime have to change things if they can do whatever they want and still gain all the international prestige that comes with hosting the wc?
The lesson is not be more open to change, the lesson is money buys anything, including turning a blind eye to human rights abuses and hundreds of dead workers.
I have no idea where you get this optimism that hosting the wc will change things.