When it came time to measure the heroism of the Greats, Yau Chui Gei opined to Gwok Jing that only North Beggar Hung 7 Gung deserved the description of "hero." East Heretic Wong Yerk See certainly did not fit the standard requirements of a hero. He certainly cannot be regarded as a hero in the same sense that Gwok Jing or even Yeung Gor was.
That being said, Wong Yerk See was far from a truly evil man. Did he have heroic tendencies in him? Despite his anti-social attitudes, he did seem to have sense of decency and justice within him (although he was loath to show it). Occassionally, he performed good deeds or punished the truly evil, although sometimes, these acts did not arise out of purely altruistic impulses.