1. Deriving happiness from someone else's suffering should be considered a mental disease to be treated.
2. Connecting people to a virtual reality where each person lives in absolute control of their own reality, matrix style. I.e, a sadist can live in a reality where they make other virtual people suffer, without actually making real people suffer.
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Ways to solve the conflict you describe:
1. Deriving happiness from someone else's suffering should be considered a mental disease to be treated.
2. Connecting people to a virtual reality where each person lives in absolute control of their own reality, matrix style. I.e, a sadist can live in a reality where they make other virtual people suffer, without actually making real people suffer.