If - we approach condition C of the simulation argument, that is if there are many more simulated beings than apparently real ones - then - We should Increase our credence accordingly in that we are simulated. If 63 billion simulated humans and 7 billion apparently real ones exist, we have - via anthropic reasoning - a 90% probability of being simulated. If we then don't care about mind crime, we would be 90% likely to be judging beings in our reference class to be morally unworthy.