Why do subcultures form within a society?

one view is that organisations inevitably reflect their host societies-many of which also have multiple subcultures.Subcultures may develop from different teams or groups of workers sharing similar conditions ,pressures,outlooks etc.Looking at this issue from another angle,we might ask--why cannot top management impose, or persuade organisational members to adopt, their worldview?Because the view from the bottom is different,because their socialisaton,educational exxperiences,aspirations etc varies.