The formal division of the Beggar's Union into "Clean" and "Dirty" factions didn't occur until North Beggar Hung 7 Gung's tenure as Union Chief during LOCH, but I wonder if such a division didn't always exist in the Beggar's Union (albeit not officially). For example, during DGSD, Kiu Fung, Bak Sai Geng, and Cheun Gwoon Ching always seemed to wear decent clothing and were relatively well-groomed and hygienic compared to the other beggars seen in DGSD, who were more genuine "dirty" beggars.