Through a mixture of robbery and violence, they acquired a small empire of London clubs and properties and, in a clever bit of brand positioning, became a visible part of the 'swinging Sixties' scene, hanging out with the likes of Diana Dors and David Bailey. They kept their hands dirty with the day-to-day running of their criminal empire - personally murdering their enemies, George Cornell and Jack 'the Hat' McVitie. Less blood-thirsty entrepreneurs often fall at the same hurdle: despite employing a large number of staff, they find it hard to let go of the day-to-day stuff and concentrate on the bigger picture. For the Krays, poor delegation caused their downfall. Sentenced to life imprisonment, their empire quickly collapsed. You may be rubbing out rivals on a metaphorical level, but the lesson still stands: if you want to build a lasting empire, employ people you can trust and let them to do their job.
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