Focus on the people you are trying to lead, not yourself. It can be difficult to do that, but when you are a leader, you think of everyone. You must forget about yourself and focus on what you can offer to those who would follow you. That is the right thing to do, and you will find that most people appreciate that behevior.
You may be a visionary with excellent insight into your company's market sector, but you don't know everything. Your subordinates may be in more intimate contact with part of the market as part of their job. If your marketing director says that your advertising isn't appropriate for your target audience, listen to her. She's probably right.
Be sure to finish everything you start or you risk losing the respect of the people that work under you. Even if something seems particularly difficult, you should give it your all and see it through to the end. No one will look at you the same if you turn into a quitter.
http://www.youtube.com/watch?v=awuJ2O2SLUs
If you work in an industry that requires you to take risks, allow you employees the opportunity to take those necessary risks with confidence. Those risks will not always pay off so you need to make a plan for evaluating various risk factors. Stand behind your employee's decision and never berate them for risks that didn't pay off.
Effective leadership does not simply just happen. Effective leaders take the time to learn about traits that successful leaders have and habits that they practice. Good leaders can become great ones by studying these characteristics, and it is an education that should continue throughout the duration of one's tenure.
