I think you are missing the point. This isn't necessarily about the ethics of Saudi Arabia, the west, everyone moving there for money etc. It's about one person, Jordan Henderson. He has openly and passionately supported inclusion/LGBT rights in the past and is now getting paid by the same people who criminalise homosexuality.
Maybe he will go over there and try to make a difference. Maybe he will donate half his money to an LGBT charity. Who knows. However, I don't think it's unfair to feel a little disappointed at this stage by the move.