I'm assuming what you mean by capitalism here is free trade. I'd actually say SA has become more "liberal" over the years and a lot of that is due to trade. When Mohammed Bin Salman becomes king I think a lot of reforms will happen. Also consider that Japan was at it's most horrofic when it was a closed economy. Although that of course isn't such a great example because war economies are generally more controlled. That said, Japan's economy remained closed after the war largley due to the same people who started it in the first place. But coming back to the main point I think excluding people from your economy, especcialy in non essential things like entertainment, casues more harm than otherwise.