I think he chose Hong Kong because corruption is endemic there, and all he needs is a sizeable backhander to the authorities. He still has royalties from his music I presume.
http://www.ingentaconnect.com/conten...00001/art00004
Abstract:
Corruption has been a perennial problem in Hong Kong. The Hong Kong of the post-war years represented what appeared to have become an intractable case of a society in which corruption was entrenched as part of political, economic and social life. .