The person I was responding to made the point that if you want to minimize evil in the world, sometimes you have to add evil to a lesser degree. As in my example, if I do 9 points of evil but prevent 10 points of evil then according to OP I've added value to the world in the form of the 1 point of evil I have reduced.
I responded that this can lead to an escalation trap. This assumes that we would all prefer less evil in the world, right? So how do we get out of the escalation trap? Repeated application of the maxim "always do a bit less evil than the worst possible competitor" will not lead to a minimization of evil overall, only a creeping increase in the total amount of evil in the world.
How are you equating this to me arguing against the existence of races to the bottom?