A great episode of BBC’s Horizon hints that business leaders may feature 4x more psychopaths than the average population – up to one in 25 – just might explain why some leaders have driven banks and other firms to keep doing things everyone knows are dumb, messing things up for the rest of us in the process. I guess we each have our own examples – I worked with one in academia too!

The programme reviewed basic findings about psychopathy [I ...