Owning the narrative to your career (and life) has a double positive effect.
First, you get to control how people look at your profile, see you professionally, and eventually what they hire you for. There are many marketing experts, MBAs, sales reps, customer success managers. When you differentiate from the bulk and stress what makes you unique, you make a statement. People will listen if you are consistent enough.
Second, it is a great way to remember what is good and tune down what is bad. Every role, every task, every project has ups and downs, risks and opportunities. If you frame what you did within a narrative that is your own, the good will naturally emerge, and it will serve an higher purpose. Your own.