The nearest I've got to changing people's lives (and the nearest I ever want to get) is supplying the data that told the business that lots of workshop mechanics were working overtime on Sundays (double time) but very few worked Friday afternoon. Managers made some changes to the overtime rules and a few more wives were lumbered with their husbands at home on a Sunday!

I've worked with employee data including absence data reporting for many years and deliberately avoid looking at some information because I feel I have no business going there. I prefer to leave it to the HR professionals who are trained in people management. My task is only to supply them with the data they request to do their job.