Valve does this in its ranking process, specifically the ranking process is about determining a composite value relative to his/her peers that each individual h

Valve does this in its ranking process, specifically the ranking process is about determining a composite value relative to his/her peers that each individual has on the company that allows for varied impacts to be comparable. For example in a system like this, someone who is an amazing programmer who spends more time making everyone around him smart than writing features doesn't have to rank lower than someone who quietly sits by himself writing a ton of feature code. That, plus no expectation/forcing of a certain distribution (e.g. the 10% lowest scoring people aren't necessarily shit, they could all be adequate in terms of value and deserving of a solid bonus, it's just that they're not as high as the folks above them) are what makes the process truly work and keeps confidence/trust in the system high (as well as the fact that all employees participate in the process.)