As Cromwell gets closer to the king you start to appreciate how his character stands out from the general sycophants that surround the monarch. He is not only able to quote the bible and knows his law but he also comes from a background that is from the rough side so he has that element of threat and danger.
He also has loyalty and he remains a supporter of Wolsey long after the cardinal has been shipped away to the North and fights his corner with the King at risk of personal loss of position and influence.
What makes this book enjoyable are the one liners, usually Cromwell’s thoughts, that are thrown in with some providing a laugh and others provoking deeper thoughts. The device of narrating Cromwell’s thoughts as he sits alone but also as he deals with other characters is a clever one that works.