Usually, there is a function, group, or team that produces the primary output of the company, and their initiatives are often prioritized by leadership.
A widely-recognized example of this is the industrial design team at Apple during the Steve Jobs era. Another industry-wide example is the dichotomy between “front office” and “back office” at banks.
It’s usually not so stark, and it may change over time, but almost every organization has a “first class function,” and then everyone else.
It might be because of
your early leaders (if your CEO sets the tone or has a certain specialty; or if you have best in class leaders in function X who recruit an amazing team which ends up defining the org);
your product (a deeply technical product will probably be “engineering first” while a deeply operational product might be “ops first” or “growth first”);
or some other aspect of your culture, business, or operations.
The biggest risk is that the everyone else feels like second class citizens; which means talented people in those functions leave, which lowers the quality of those other functions, further cementing the dominance of the first-class citizens. Another way I’ve heard this framed is that function X is the key function, and everyone else feels like a “cost center.”
You might not ever be able to change it. You might not even want to change it. Just be honest with yourself; recognize it and be thoughtful and sensitive to it.