A friend of my late father was a carpenter, fitting out rooms in the mess at RAF Coltishall when DB took over 242sqn. It seems that he was very vocal in what he did and didn't want, and made his views well known to the chippy. Being a good old Norfolk boy, he didn't like this and stood up to the man. After that, things were much more pleasant.
I also knew a few people who met DB during his time at Shell aircraft. The consensus being that he was someone living off his past reputation as a war leader. He'd make decisions then leave the paperwork and follow-up to underlings. After he left SA, and then died, Lady B would make the odd visit to HQ and complain loudly if anything had been moved or changed. Apparently DB would not have approved of this or that.
We're all looking back close to 80 years, and opinions will doubtless change. At the time, like many other war heroes he was used as an inspiration to others. That may have lead to more unfortunate character traits.