Back in the late 90s I worked at a place that sold all kinds of automotive parts. Everything from nuts and spark plugs to turbochargers and large assemblies. The secret sauce of this company was a small team of people who worked through thick supplier (paper) catalogs and figured out which parts from different suppliers are in fact interchangable by comparing their specifications. This all went into the database for the sales team's use.
Well one younger guy in this team worked out a way to largely automate his job using OCR and spreadsheets. Instead of taking 8 hours to work through his day's load, he would do it all in an hour or two. Then he'd slack off for the rest of the day.
Soon the manager found out but the manager was not upset, instead the manager was disappointed. Why didn't this employee share this system with the others? Why did he think it was OK to slack off for 6 hours a day instead of doing 4 times as many catalogs? If this employee worked for me, I'd be putting him to work finding other things to automate!
In the past I've had many comments from people saying 'oh he should have kept it a secret' or 'he is getting paid to do X and if he is more efficient then why cant he slack off' or even 'oh no this is a disaster now most of that team will be laid off'