If anyone typifies the spirit of the inaugural FN Extra Mile list to be published next week, it was Citi banker Adnan Jaffery who set out to transform teenage lives even though he had cancer.

Jaffery, a repo trader with Citigroup, was just 25 when he was diagnosed with a rare form of adrenal cancer. Doctors told him to take time off work, but rather than putting his feet up Jaffery turned to mentoring youngsters from deprived backgrounds with youth charity The Prince's Trust.