[@BingTheWing], let me elaborate a bit on the nature of karma.

The first point I'd like to make is that karma isn't quite so straightforwards as you're suggesting. Good karma is not necessarily gained by being kind and helping others; similarly bad karma is not reaped by stealing, selling oneself, hurting or even killing a stranger etc etc.

Additionally, the world "punishes," and "rewards," people in subtle ways at first when they gain either sort of karma. Additionally "evil," is relative as is "good," and people can be raised in circumstances that cause their world view to not include things that would involve them gaining good karma.[hr]
To elaborate on what I mean by Good karma not necessarily being gained by "good acts," as seen by human society (and vice versa for bad karma) is as follows:

Bad karma is associated with acts that defy the natural order of the world OR damage/destroy things in a meaningful fashion. Acts that glean this sort of karma are acts that in some way cause, or open the world to, entropy--be it on a small or large scale.

Good karma is however associated with acts that reinforce the balance between entropy and creation [i]or[/i] conversely acts that create or improve the world, rather than tear it down.

Additionally, while most people are aware of "karma," to some degree, it is not something that is fully understood. In fact, the description of it leaves it as a fairly nebulous force in the world, something that is difficult to outright measure, if it is even possible to do so. Additionally, as I mentioned, karma is entirely separate from the views and beliefs of a given society. So even if an orc, or other such creature, believed that killing or hurting someone was not "wrong," or "bad" their view would not at all stop the world from punishing them for killing someone, provided that it deemed the act something that caused some level of entropy to the world (which it well may not).

Similarly, a priest of a given god might worship their chosen deity devoutly, they might garner the attention of the people and gain the deity a great many followers. However, if one of the people that becomes a believer twists the tenants of that religion/God's word to negative ends, the world will see those actions not only as bad karma associated with the believer, but also bad karma associated with the priest, as if it were not for the priest, the man may not have thought he could be absolved of his actions by the church.