Sure it would. If you had Sims that went around killing other Sims, there's no way in hell you would promote them, or use their stimulated experiences as a bases for more complex/serious projects.
I'm not deep into LLMs or AI safety right now, but if you have a bad performing AI, you aren't going to use it as a base for future work.
I was about to go to bed so I was rushing through my initial comment... I was just trying to understand the motivations for trying to create a stimulated reality... Look at the resources we spend on AI?