Its not even that. Look at the job description for any managerial position in programming and they almost never ask for programming experience.
Imagine two cvs. One has 10 years of experience programming and 2 "managing" a team of software devs. The other 10 years of experience "managing" and knows nothing about programming. Guess who they would hire?
This is because the system is top down. More often than not top directors are old and understand nothing about technology. So they see engineers as threatening and scary and they prefer to hire people they "understand".
Most people managing a software developer team can't read code so everything eventually becomes super political because the manager is guided by impressions and things like the name of the PR ans such.
Its like hiring a blind man to supervise a group of painters. Then managers feel super insecure because they don't understand things very well even if they try with metaphors. Insecure managers tend to be very aggressive and toxic
