Persons who own and operate their own businesses do have more freedom to do what they want. They can experiment with ideas and let their creativity flow. The desire to express creativity and inventiveness is also part of what motivates entrepreneurs. In ancient Hawaiian history many examples of creativity are found. Starting a new business is a creative act.
Creativity enters into every part of setting up, planning, marketing, and maintaining a business.
Having these characteristics is not a sacred possession or birthright of only a few people. Don't strain to be too clever or unique, you don't have too be wildly original. You should do what you do well - in fact you should do it better than anyone else. Utilize your skills, pursue a business in which you can put your talent to work. Remember, the business you select must be something that people need and will pay for.