Rustle
The cost of licences, certificates etc does not only cover the cost of processing applications and issuing the licence. If I understand CAA charging arrangements correctly, the CAA charges for licences etc also covers the cost of developing, monitoring and reviewing requirements under which they are issued, associated activities, and an approriate contribution to general running costs such personnel management, building security etc. These costs are unlikely to be affected by even if one or two extra admin staff are needed to process licence applications etc.