Her greatest impact was explicitly political. The role of the European constitutional monarchies is primarily as national symbol. Her political and moral responsibility is comparable with the responsibility of the restorers of the Brandenburger Tor. No good person would ever build or restore a national monument, a national symbol. Every nation state holds territory for a national group, to the exclusion of possible ethical use of that territory.
National symbols legitimise that misuse of territory.
Such symbols invite people to worship the nation to which they belong. And like much nationalist symbolism, they are effective. It is therefore especially wrong, for a human being to deliberately become such a symbol. And while Britain has many monuments, few are as important as Her Majesty Queen Elizabeth II of Great Britain and Northern Ireland. No good person voluntarily symbolises a nation state.