Amp up the sort of disdain that might, for example, prevent international organizations from granting legitimacy to these regimes. Things like FIFA, as a completely random example.

I think it's clear that FIFA gives anti-fucks about slave labor.

Sure, but FIFA cares about money and at least some people care about not giving their money to deeply unethical entities. That’s what it’s meant to accomplish.

Bringing further scrutiny to similar practices there and elsewhere.

You need to ask what it accomplishes to leave it in the dark.