Basically... no. I read a post recently where someone tried to calculate what percentage of TOR sites were legal/legit. I thought it was from Bruce Schneier but I can't find it so I may be wrong.
The person found a handful of thins like Facebook were available and some big journalistic organizations can be contacted that way. There were a number of indexes of known .onion URLs.
Most of the rest was hacker services for sale, scam sites, child porn, etc.
Outside of passing info to journalists (not much traffic) or talking where state censors couldn't find you in a repressed regeime... what would make 'the dark web' useful enough to normal people that it would get used in any sort of scale? There's an obvious advantage for criminals to use it but I don't see something to compel non-criminals. Thus it seems to have sort of naturally segregated into a mostly criminal thing.