Political will = Saudi Arabia is a benevolent dictatorship. Benevolent, as in most citizens live well and are relatively happy with their lot in life. Dictatorship, as in the King makes the rules or the Crown Prince does so in the King's name... as long as he remains in favor/succeeds -if he fails, he will be replaced by another as Crown Prince.
All dictatorships are "benevolent." In both China and Saudi Arabia, citizens live well and are happy as long as they do "the right thing." Consider the fate of Jamal Khashoggi, who didn't do "the right thing." Also, in both countries, there are a lot of poor people who don't live well. In China, those poor are citizens, while in Saudi Arabia, they are imported non-citizens. In both countries, these poor people will not live so well, even if they do "the right thing."