Wealthy in what way? I’m sure the South had massively rich plantation owners and bankers, but like most resource extraction economies I suspect monetary velocity was lower and the general public was much poorer and less educated. Extraction economies usually amass a lot of static wealth but are poor in terms of dynamic wealth.
The relationship with Northern capitalists would have been similar to what you see today with petrostates, resource extraction states, and vendors of cheap labor.
Had the South survived I would suspect it would be much poorer today than the North as its economy would probably get stuck in extraction and labor exploitation. Chattel slavery would probably have ended when fossil fuels were discovered at large scale and it might be a petrostate now.
The relationship with Northern capitalists would have been similar to what you see today with petrostates, resource extraction states, and vendors of cheap labor.
Had the South survived I would suspect it would be much poorer today than the North as its economy would probably get stuck in extraction and labor exploitation. Chattel slavery would probably have ended when fossil fuels were discovered at large scale and it might be a petrostate now.