opportunism

安部公房の小説 "The Face of Another" を読んでいます。
It seems to be proverbial that the story of the ugly duckling ends with the swan's song. This is typical opportunism. How would you feel if you were the swan? No matter what song others sang for the girl, she did die, she was unmistakably defeated. I don't want to be like the swan.I don't want that. If I die, there is no one to think of me as a swan, and furthermore I have a chance of winning. Well, when I first saw the movie I turned my face away in anger, but it is different now. I cannot escape a new sense of envy for the girl.
"opportunism" を辞書で調べます。
・Oxford English Dictionary: The taking of opportunities as and when they arise, regardless of planning or principle.: He was accused of political opportunism.

・Collins Dictionary: If you refer to someone's behaviour as opportunism, you are criticizing them for taking advantage of any opportunity that occurs in order to gain money or power, without thinking about whether their actions are right or wrong.: The Energy Minister responded by saying that the opposition's concern for the environment was political opportunism.

・Cambridge English Dictionary: behaviour in which you use every situation to try to get power or an advantage: political opportunism