accountant
airline pilot
articled clerk of a limited company
assurance agent of a recognised company
bank or building society official
barrister
chairman or director of a limited company
chiropodist
commissioner for oaths
councillor - local or county
civil servant - permanent
dentist
director, manager or personnel officer of a VAT-registered company
engineer with professional qualifications
financial services intermediary, for example a stockbroker or insurance broker
fire service official
funeral director
insurance agent of a recognised company - full time
journalist
Justice of the Peace
legal secretary - fellow or associate member of the Institute of Legal Secretaries and PAs
licensee of a public house
local government officer
manager or personnel officer of a limited company
member, associate or fellow of a professional body
Member of Parliament
Merchant Navy Officer
minister of a recognised religion including Christian Science
nurse - registered
officer of the armed services
optician
paralegal - certified, qualified or associate member of the Institute of Paralegals
person with honours - OBE or MBE
pharmacist
photographer - professional
police officer
Post Office official
president or secretary of a recognised organisation
Salvation Army Officer
social worker
solicitor
surveyor
teacher or lecturer
trade union officer
travel agent - qualified
valuer or auctioneer - fellow or associate member of the incorporated society
Warrant Officer or Chief Petty Officer
They are all professions that require a good reputation and are non-trivial to up and abandon. Some require government licenses, others imply a strong societal standing. All have something to lose, if they commit fraud.
Director of a limited company is easy enough to up and abandon as there’s no limit on the type of company.
Just ask all the people who have been on the bad end of a transaction with a shitty two or three director company that went bankrupt and closed down when people started chasing for money. The next day those same people are directors of a new company doing the same thing.
You still need to sort out and sign a bunch of identity confirmation/anti money laundering stuff. The government has a good track on you, at that point. It’s far from perfect, but stops people getting it signed off by a random friend, that the government has no clue about, and might not even exist.