Does 道上的人物 represent anything special? xxx 也是道上的人物...


Does "道上" mean something like "a good and legal path" while "道下" (not sure if even this is a word) means "the illegal ways"?
Here 道 means 黑道, 黑社会 (underworld). So xxx 也是道上的人物 means xxx is the member of some underworld organization.

道下 is not a word.