See you wrote it in a clearly understandable way without abusing mathematics or giving any credence to mathematics being involved in the concept.

Only if they are measured on a scale allowing negative values for outcomes and sufficiently high values for service. It would be unsurprising to have outcomes measured from zero and service topping out at 100%. The equation doesn't say anything remotely precise, it's just a bundle of vibes.

> It would be unsurprising to have outcomes measured from zero

Assuming that you can never make anybody worse off than they were before you showed up would be a much worse abuse.

Or you're using a log scale because your effects span many orders of magnitude, or whatever. The specifics are not particularly central to my point beyond that it isn't too hard to wrangle up some scenario where the equation says something completely different.