Latest since the publications by Daniel Goleman on Emotional Intelligence you should know that Self-Control (more precisely: self-regulation) is essential for you if you want to be a great leader.
The article below "Leadership Takes Self-Control. Here’s What We Know About It" suggests three keys to boost self-control in organizations:
"Ultimately, the keys to avoiding self-control failures are to 1) allow the body to rest and restore self-control, 2) reexamine existing organizational policies that might inadvertently reduce employees’ self-control, and 3) create a culture that deters negative behaviors in moments of reduced self-control."
Interestingly, once again sleep and rest turn out to be essential elements for better self-control and better leadership.
First, sleep appears to have an amazing restorative effects on self-control. One study found that leaders who slept well at night (defined as having minimal interruptions to sleep) were much more likely to exercise their self-control and refrain from displaying abusive supervision, such as yelling and cursing at low-performing subordinates, compared to their counterparts who did not sleep well. Modern organizations often require employees to work beyond traditional office hours in the name of increased productivity. But this could be counter-productive and lead to negative workplace behaviors due to employees lacking self-control. Instead, organizations should be mindful about how long work hours can impact employees’ behavior and wellbeing. Google, for example, installed sleep pods at the office to allow employees to nap and be reenergized.