The composition of the modern labor force is changing rapidly. In the past it was made up of mainly white males, but women and migrants poured in. If the corporate culture does not match with the composition of the work-force the productivity of the employees in the disadvantaged groups will be lower and the absenteeism will be higher.
Discrimination is a taught thing.
There is no gene for discrimination, people are not born with it. It is taught, and anything that people can learn they can un-learn. During the workshops participants are divided on the basis of a physical characteristic over which they have no control. In society, this is often skin color, in the workshop it is eye-color. The brown-eyes have to commit themselves to cooperate in the exercise.