Quite an interesting turn that this thread took. First everyone wanted to impose self-justice on her, then all of a sudden she was a social revolutionary.

Both extremes are wrong.

Rules in society are necessary so that many people can live together without bothering the other too much. While we could discuss the sense of some rules, it is not on us to decide which one we like and which one not. A free society should give us the possibility to question rules and vote against them, but not to decide which one to follow and which one not.

This said, there are also institutions that punish wrong behaviour. In this case the FA and maybe everything after, but certainly not the passenger next to the lady by dropping a glass of water or whatever.