My honest opinion is that the prevalence of licenses like GPLv3 and AGPLv3 end up indirectly leading to people recreating the wheel, rather than using the wheel that exists already.
I think wheel-reinvention is the perfect punishment for people that want to be stingy with their wheel development. Copyleft infringement deserves no more empathy than copyright infringement.
Working as intended. If they don't want to share, then they can't benefit.