No, especially with stress, even carrying relative light things can cause lasting damage with one moment of not paying attention. Nevermind all the other dangerous things. Also I thought laws were tough for safety in germany, but they restaurated a big railway bridge right next to where I lived (years ling project) - and they worked even in icy, windy conditions with fog. You know those fog, that combined with freezing conditions will cover everything with a slipery wet ice layer. And this with heavy wind. No wonder people literally died there in accidents. (And officially this was not mentioned ever, DB rather celebrated themself for this project often. It was mostly east europeans working there).

Neither does the police stop murders from happening, but if your employer demands you haul around 50 kg of bricks around by hand, you have legal recourse.