The key to Career Success is the Creation of Value.
But Value is in the eyes of the potential or current employers.
Let me explain that.
I have interviewed thousands of persons. When i sit on interview panels i realize that every human is valuable, talented, wonderfully made BUT the business or company do not need everybody. They need that ONE person they THINK is the right value for their company.
This means it is not you that defines value, value is defined by the employer.
Part of your job is to know what their definition of value is and position yourself accordingly.
I hope you get this?