Scrum Master is considered a low-grade job or even completely useless - here is WHY.

1. LOW-VALUE EXPERTISE.
Most Scrum Masters do not possess any truly valuable expertise beyond a basic understanding of key Scrum elements—something easily acquired through numerous courses or public resources.

2. LOW-VALUE OUTCOMES.
Most Scrum Masters don’t actually contribute to business value anyhow significantly (unless they combine the role with others) …