Yeung Gor had no shortage of enemies in ROCH, but other than Wong Yung (and perhaps Ohr Jen Ngok) and a few Beggar's Union veterans who had been members of the Union when his father Yeung Hong tried to usurp the Union Chief position during LOCH, I don't think anybody else bore a grudge against Yeung Gor specifically because he was the son of Yeung Hong. Most people were either unaware whom his father was, or it was irrelevant to them because they had never met or been an enemy of Yeung Hong.