AskHistorians

Yes, and this is both bad and a side effect of something good. In that particular time and place you'd get that treatment, cruel or not, by the rules generally. We are entering something more like new Middle Ages, and I think now I liked those more when they were in the past. It's nice to read Sapkowski's Narrenturm from a warm chair with thyme and mint tea in your mug, but some gruesome shit happens there.

About one man saving the world you might be overdramatising things. There are quite a few mathematicians who've contributed to this, and chronologically in the beginning they are all Polish, as another user said.

Yes. Heroes do the hero thing, then go home and get humiliated and abused by cowards. This is such an old story that it shouldn't surprise anyone.