I think it would be more likely they would force Dwan to help them cheat other players. Similar to the situation Chip Reese was in when Tony Spilatro had his hands in Chip's pockets.
From Wiki:
As a result of his gangster lifestyle he has also acquired a number of wounds. He has been shot twice and has had his arms badly mangled by meat cleavers, and as a result cannot straighten his two middle fingers.
*******************************
In the autumn of 1997, Wan approached Hong Kong movie producer Henry Fong Ping to produce a film based on his life. The result was the 1998 movie Casino (aka Ho Kong Fung Wan) starring Simon Yam as Giant, a triad boss living the high life in the Macau underworld. Wan agreed to extensive research meetings to make the film as accurate as possible, as well as using his influence on Macau to help the crew film.
One of his most outrageous stunts was to close down the Macau-Taipa Bridge for some hours to allow filming of a crucial scene in the movie. The producers had asked the Macau Government for permission to film on the bridge, closing it to traffic, but permission was denied. However, Wan wanted the scene to be shot anyway so he closed traffic from both sides of the bridge without any warning and the scene was filmed in this manner. Traffic to and from Macau was, because of this, halted for around two hours. No police intervention was made or any other measures by the Macau Government were taken to reopen the bridge to normal traffic flow on what was then the only link between the Macau mainland and Taipa-Coloane.
http://en.wikipedia.org/wiki/Wan_Kuok-koi