I feel people in those positions are just people who want a job in tech / startup and have gotten there not because they deserve those positions but because, they've given up on learning the skills and resorted to becoming a "manager". At least from my experience this is what I've seen. They generally don't really add any value because they don't have any skills, don't know how to do anything.

The positions I mentioned above are usually the position people who failed at picking up any valuable skill seem to resort to.