The UK punches well above their weight.   In addition, many other countries have benefitted from `high-end`brain drain from the UK, particularly the US.   

Take Apple as one example.   The Chief Design Officer at Apple is Jonathan Ive.   He drove a lot of the design innovation work for which Jobs usually credited.  Ive is an industrial designer who trained at polytechnics in England.   It`s hard to see Apple being the force they have become without him, bringing big benefits to the US economy.