If several things that could have gone wrong have not gone wrong, it would have been ultimately beneficial for them to have gone wrong.
悪くなる可能性のある幾つかが悪くならなかったとすると、悪くなって利得がある側に取ってそれが最大の利得をもたらすものであったからだ
After things have gone from bad to worse, the cycle repeat itself.