Is it necessarily a bad thing to have a smaller finance sector? The talent won't really do nothing but would go to other sectors. "Winning" finance just means

Is it necessarily a bad thing to have a smaller finance sector? The talent won't really do nothing but would go to other sectors. "Winning" finance just means that you're more exposed to the financial crashes. IE compare how Germany fared during the financial crisis compared to the UK. Edit: removed a unintended global