I can't fault them for taking pride in their work, even if I vehemently disagree with the result of it. Then yes, you can. Your argument, applied broadly, has

I can't fault them for taking pride in their work, even if I vehemently disagree with the result of it. Then yes, you can. Your argument, applied broadly, has you applauding the pride of IBM engineers who developed systems to assist the Nazis in identifying people to slaughter. The idea that engineering exists apart from moral principle is absurd.