The thing is, the mess had to be cleaned up and the manager did it after everyone else refused. There are limits, sure. You need proper equipment to clean up such a mess because it is a health and safety issue. I can also understand why no one would want to step up. When everyone else is a refuses the job, stepping up is a good way to end up being the one called upon to do it in the future. But the reality is that people were probably refusing because they didn't want carry their weight.

But kudos on the manager. He realized that it had to be done, then went ahead and did it without ordering anyone else to do so.