There’s no commonality between leadership and bullying at all…
Leadership IME is about setting a vision, showing what behaviour you desire from your team by behaving that way yourself, delegation and empowering people to do their jobs to the best of their ability, and supporting them in their own ideas and potential. It’s focussed on thinking about what others need from you, and putting your own needs second.
Bullying is about a weak person’s ego and a failure to deal with their own fears and issues. Typical behaviours are control, manipulation, dishonesty.
You know when you’ve been well-led – you feel great about yourself and you achieve more than you thought you could.
You know when you’ve been bullied – you feel depressed, disheartened and angry.
Much of what is put up as leadership by programmes like the Apprentice, Dragon’s Den etc is pretty much the exact opposite.