To me, it all depends on what fits the profile.
If an artist has skills and doesn't say he's a thug or fronts like one, then I would listen to him.
An artist with street cred (usually a lot of it) and no skills often end up as a mainstream artists since it's their gimmick and not their lyrical skill that sells (50 Cent).
Then again we have artists who do have skill, but are complete hand puppets for the mainstream (Ja Rule, I admit he does have skill and artist range).
Most artists though do have both street cred and skills, and there are artists who want to immitate that kind of shit.