As to the statement: life ain't fair.

There's a question of whether it's better to let some survive and/or thrive, and others not. It goes back a long ways. One of the more recent debates emerged when Garrett Hardin published his "Lifeboat Ethics" essay in 1974, which prompted fierce debate for several decades.

https://en.wikipedia.org/wiki/Lifeboat_ethics

http://web.ntpu.edu.tw/~ckliu/course/research/lifeboat.pdf