Actually I think you should when that work is not scalable. Surgeons can very well be measured by how many patients they operate on. And quality improvements are a thing, but how much more productive is there? 1,1x or 2x or 3x? Probably not magnitude more. So really their pay should only be that much more...
If you can completely fix a hernia with 99% success at the first try without a hospital stay, you are significantly more productive than somebody that has a 50% success rate and that requires patients to stay in hospital for a week, even if you operate on the same number of patients.