The biggest difference between the US and Saudi Arabia, South Africa and other oppressive regimes is that the US's current abuses are, to a very notable and traceable extent, a product of its own citizens' making. When you vote for the Republican Party or decide to stay home because the Democratic frontrunner doesn't meet your liberal litmus test, things like concentration camps, draconian abortion laws, threats to eliminate government-funded health care, inaction on gun control, and etc. all slowly but surely become reality. In the US, voting is a power that can and will lead to change. But in Saudi Arabia, the average person just doesn't have the same clout to push for change.
I've been to Saudi Arabia 3 times (all before Khashoggi) to accompany Japanese game creators there (one of them was a woman, even!). The reason they agreed to go is because they simply wanted to meet ordinary Saudi Arabian youth and gamers. They know Arab gamers are passionate through interactions with people from other GCC/Arab nations, so they didn't want to pass up the opportunity to meet and potentially inspire these people, many of whom want to become game creators themselves. None of them supported the terrible things their government was doing. A handful of them even supported things like LGBT rights in the West, others were in the closet themselves. Others wanted to flee to the West or Japan themselves one day. I don't think these ordinary people should be forgotten.
Not saying that my situation is the same as Nicki Minaj or the WWE's, but it's worth thinking about it from that lens.