Definitely, though in GrantTree the process of defining how different performance is rewarded is still a work in progress. We set things up so that the team decides together how much people should be paid (that's a lot more complex than it sounds on the surface - lots of ways to do it wrong). Currently, if someone feels they are underpaid, they need to convince their peers that that's the case, rather than cozy up to their manager and then argue for an exceptional pay raise.