"It's in our/their DNA"--referring to a principle, practice, or custom of a company or team, or something they are committed to.
"At XYZ Company, we care about quality. It's in our DNA."
"Our team gives 110%. It's in our DNA."
"The user experience is my highest priority--it's in my DNA!"
No. Brown eyes are in your DNA. Blood type is in your DNA. You are not responsible for them, and they do not reflect positively or negatively on you--they just are. A concern for customer service is something you can choose to have and to act on.
This one is really common where I work.
I wonder if anyone would say it at, say, a biotech company?