Problem is this goes beyond implications. Sepp Blatter was arrested by the FBI and, as I understand it, suspended from any FIFA role for years because of what went on.
The O.P. mentions the degrading conditions for workers in Qatar.
If you can name a world cup hosting nation in which this has also happened, I'll happily concede. Well, the worker's conditions arguably isn't an issue for other nations because the stadia are already built, although that could also be interpreted as all the more reason that Qatar shouldn't be hosting.
There isnt just one kind of corruption or mistreatment, take
brazil 2014 for example and the impact that the olympics and WC has had on the economy, that wasnt just simply abusing workers, but a whole nation that lost billions of tax payers so some officials can get a piece of the cake to their bank accounts. I wouldnt delve into South Africa or to Italy and how the subsequent scandals shocked Fifa in a way that we are still feeling its shockwaves today. Corupption is a tetrahedron with many facets and one apparent vertex, just like the mispelled couple of words in this phrase. The beholder cant see the submerged part of the iceberg.
It is a fact that Qatar and the petro dollar monarchies are mistreating the workers, treating them like slaves, or even worse, but let just say that Nike, Zara, Samsung, Apple, Shell, Pepsi, Danone, Rockwell etc are doing the very same thing and no one seems to give two hot cakes about it. Wars are fought, people are dying, climate is changing, ecosystems are been destroyed, systemically and no one cares much, because we like to own stuff, thats a fact, so when u start growing ur own food, walk to ur destination, not using energy etc. only then u and I can talk about Qatar and the workers conditions over there.