Those may be extreme cases which make people shocked and think about what went wrong.

I think what matters most is our attitude to those relatively less severe injustice or unfair things happening much more often in different communities including workplace - not only between the White and the Black, but the White and other minority races, and even those of same race but different professions or titles.

Discrimination may be triggered by many factors, and it affects many's daily life silently but painfully w/o known by others. What surprised me most is that there are people (not few) out there who get used to those unfair things happening around and accept them as part of life/reality.