Chazal say one of the reason Nadav and Avihu were punished was because they never married, and it caused pain to single girls. Is a person responsible for the pain others feel as a result of their actions when they didn't harm them directly? If yes, is that true even when one didn't do anything wrong? The fascinating Machlokes between Rav Henoch Leibowitz and Rav Chaim Shmuelevitz.