I think his album went platinum. and "whoa" was certainly bigger than any lox song. and he won a source award for it too.
only thing they had on rob is that they got more features. and lets be real, in the eyes of the majority, the people who love those songs but aren't really into hip-hop like that and really don't know the lox, they could care less if the DJ skips their verses on benjamins, honey, etc.
hell, even their signature bad boy hit, "money, power respect", the main attractions were the DMX feature, the lil kim hook & the beat.