Wow this is an interesting share someone from gambling industry making it to to Forbes rich list is a huge achievement and considering it's related to gambling this is an added incentive for me to even gamble more, who knows someday one of us a gambler makes it to Forbes list. I really need to read about this guy and considering he's 21st shows how good he's been doing.
Lol mate, you have to understand that Sheldon Adelson build a empire, meaning he is a entrepreneur and didn't get that much money from playing or gambling. That's different. He has work hard to get to that list because I read some biography of him online few years ago and tells that it was like a cinderella, rags to riches story.
He became a casino magnate by selling COMDEX or share of it if I'm not mistaken and build Venetian and that's how he made a lot of money. But taking risk (which we are all familiar) stick to the plan and with some luck multiple and open another casino in Macau which we all know is Asia's gambling capital.
So from his viewpoint, online gambling is a big threat for his business, because we all know that it is slowly creeping in and garnering a lot of attention lately and it might take a huge chunk of money from traditional, land based casino's in general, which he all gets his money from.