Because bankers measure their self-worth in money, and pay themselves a lot of it, they think they're fine fellows and don't need to explain themselves.

The Honourable James Buchan born 11 June 1954 is a British novelist and journalist. He was educated at Eton and Magdalen College Oxford and began his career as a Financial Times correspondent writing from the Middle East Germany and the United States. Biography
Buchan is the son of William Buchan 3rd Baron Tweedsmuir and grandson of John Buchan 1st Baron Tweedsmuir the Scottish novelist and diplomat.