This isn't anything to do with DRM. Say you have an intangible item, a jpg, a movie file, the NFT proves you 'own' a copy of the intangible item, it gives it a 'value' and the blockchain bit means it can be sold to somebody else who also believes it has a 'value', preferably a higher 'value' than you paid for it.
In other words this is just another way of extracting money from the gullible.
When you buy a Daz asset, you are only buying a licence to use it in a particular way. DRM is a way of prevent people who haven't bought a licence to use it from using it.
Best Wishes
inc3d