I'm currently job hunting, so get a few mailshots, and have an alert set up for analytical jobs in the civil service. I'm often surprised at how low the salaries are for job titles that sound strategically important for the running of our country. This is just a random example.
The range shown is for someone based in Darlington, but I clicked through to the detail and the London range was only £3k higher. I know the cost of living is lower in Darlington than in London, and that £50k is relatively a high wage in that area, but if I was a Darlington-based economist with the required level of competence to lead a team of 15 people in advising Government ministers on national policy, I think I might be well aware of my ability to earn much more with a different employer.