Even if you are at the top of your profession, it is still advisable to take out a Professional Indemnity policy to cover your potential legal liability for financial losses caused by any errors or omissions. After all, how many people can say that they have never made a mistake? On top of which, employers are also legally liable for any mistakes made by their employees!
A Professional Indemnity insurance policy will take this worry away as it will provide cover for defence of any allegations against you, and also provide for payment of any damages. In addition, you will benefit from the expertise of your insurers in defending you, as they will have had previous experience of most situations.