There's no need to be a tyrant if you apply appropriate business discipline. What does that mean?
In a few words, it's making sure you do what you said you'll do. Two ways to do it, either by making sure you don't waste time on things that don't matter that much.
Second and really important, identify your strategic goals, then invest and hire to achieve them. The goals can be related to product, marketing, sales, financial, and employee development.