<span>The theme of teamwork and leadership
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Because people wanted him to be remembered
In The Strangers That Came to Town, the antagonists would have to be Tom and Andy. Taking into account the definition of 'antagonist' which speaks to being hostile and actively opposes to someone or something, the boys would best fit the profile. They were unwilling to get to know the Duvitch family and merely judged them based on their appearance. Even though the boys' father made an effort to speak to the family the boys showed no regards for them and even went as far as throwing soap into the tub in which the Duvitvch family kept fishes, and this resulted in the sixty-one of the fish dying.
My best guess for the answer to this question is that the listener in My Last Duchess interacts with the speaker while the listener in Life in a Love does not. In My Last Duchess, a rich duke is having a conversation with a man about a portrait of his late wife while negotiating a deal to marry a new woman. Life in a Love is about a man's reaction to a woman possibly leaving him. In the first poem, there seems to be a more active conversation going on. I hope this helps. None of the other answers seem as relevant, so I think this is the right one.