It's just natural. In any sufficiently complex organization you have internal conflict and competition for resources, often conflicting goals and adversarial relationships that you have on the outside. Internal conflicts can ironically enough be more vicious than external conflict. Any successful company must have processes in place to function despite of that.

A successful tech company in particular can go from 5 to 500 people in just two years. How do you run on trust when 95% of people don't know each other?