Many company’s, particularly US owned, staff evaluation schemes are based on ranking their staff, and additionally rewarding the top 20% and firing the bottom 10%. (This idea comes from the US, probably from GE; firing people because they are not as good as someone else is illegal in the UK and much of Europe.) Basically it is not about continuous improvement, it’s based on a world view that thinks people are lazy and need fear to make them work hard. Fear of not getting a bonus, or fear of dismissal. This cynicism and hate will never build a successful firm.