By nature, men are supposed to be strong. Many men who wear skull rings say they make them feel and look more masculine. Some men also say that the rings boost their self-esteem and confidence. This boost in confidence helps them to achieve more in their career and goals.
That is why skull rings are the most popular symbols for free spirits like rockers or bikers. They know that life is short so they enjoy it while it lasts. The actual image of the skull shows various things at once. It means, at the same time it symbolizes death and also symbolizes the power of life.