This is a 'win-win' situation. A community affords us the luxury of specialization and a division of labor. Each of us need not grow all our own food or fix our own cars. We trust that food and automotive mechanics are available on demand. The community endures and prospers by our individual and specialized endeavors.
Specialization is normal in our highly-technical society.
We haven't enough life-times to master more than a little of the available knowledge. We are forced to choose a discipline, a profession, a sub-specialty. Unfortunately, wrapped up in our specialist worlds, we often become blind to others' worlds. We dig deeper and deeper, gaining knowledge, viewpoints, and jargon unique to our fields. Other opportunities slip by.