Two issues here — the the £30k represents the amount the Council pay on top of the salary for the Chief Exec at approx 22% of gross pay – staff on the lower grades only get approx 12% pension from the Council.
The real question should be value for money – a person can only work a certain number of hours on a week – the CW will be paid £72 an hour for 37 hour week approx 5 times the amount staff get paid that deliver Council services – social care, teachers, refuse etc. The CE only has about 8 Chief Officers reporting to him so not many people to deal with – it does mean he has 7 people to push things off his desk to and those 8 have other service mangers to push onto, who then push down the ranks tio the staff that really count those that engage with the public – the front facing workers.
Also remember during the years of an Election as he is the Returning Officer nice bonus on top.