Software is about creating automation. Automation is never about increasing costs over existing methods. It is in the end about scaling up. If the system had to have just as many more people to scale it wouldn't be worth it. Therefore devs are scaling themselves out of work.

It's a natural outcome of mega corps and the laws designed to allow them to be mega. Business size should be limited and most tech intellectual property invalidated. That way the devs that can't get hired by the existing market can create new markets.