Do I think the UK is in a better position? Possibly. I think the EU has probably helped to hold back on corporate dominance. Legislation is less about supporting corporations and more about supporting society. (I do think we have a free speech issue. Glenn Greenwald in an interview said he would fly to USA but not to the UK as he had better legal protection.)
The more interesting question most banks/countries must be asking themselves, "How do we get out of the USD?"