1. I think that it is very important to distinguish between seniority (formal, role- and capability-based) and leadership.

2. While the original post offers a nice list, my mental model on the topic is pretty simple: the higher the seniority, the more capable a person should be in strategic thinking (both technical and business), ability to successfully apply it to correspondingly larger scopes and impact (tasks -> features -> problems -> teams -> organization -> company -> industry -> economy), and soft skills.