In countries such as Vietnam, Cambodia and Laos, the gambling industry is mostly owned by the Chinese nationals. In mainland China, gambling is banned. And therefore those who can't travel to Macau normally come to these nations to visit the casinos. It is a mutually beneficial relation, but there are some negatives as well.
Could that mean that most Asian countries, they are the majority owner of those casinos? I didn't know that they have that much casinos although in movies, I used to watch that they really are into gambling.
Growth in organized crime and money laundering are some of the negative side effects.
That's like the corruption that happens.