There are many reasons that you should own your name as a domain. It doesn’t matter if you work for yourself, for someone else, or don’t work at all. Yourname.com is not just for businesses.
It is Your Identity, Protect it! Even if you never plan to create a blog or website. It protects you from unsavory people or even an ex (significant other, employee etc.) with a vengeance. Anyone can buy your name and turn it into a slanderous website against YOU or YOUR company!
There are plenty of domain squatters out there too, buying up domains in hopes of selling it test to you later at an inflated price. While you’re at it, buy your spouse’s name and your children’s too.