Scrum is management consulting companies trying to keep their job by turning something that would make them irrelevant (the agile manifesto) into something that requires tons of billable hours and useless qualifications like "scrum master". Seems to be working great for them.

The agile manifesto is about how to run a consulting company. "Customer collaboration over contract negotiation" is not something non-contracting software teams have to worry about, customer collaboration is important but there's no contract negotiation to prioritize it over.