While that depends on various things, but generally speaking, yes. History tends to remember the people who sacrifice for the greater good. They may not be considered a 'good politician', but a good leader, more likely than not, at least once people can look back on it honestly and leave their biases out of it. Not to mention the old excuse "I just just following orders" is one of the worse excuses there is to history...But if he looses his job than how is he going to write history to ensure he gets remembered as a "good" leader?
While 'history is written by the winner', we tend to discover the truth ...eventually. I could give some real world examples, but real world politics is not really an acceptable topic here.
Not all democracies require a majority of the population to vote on every piece of legislation, and not every rule is put in place the same way. Some laws/rules are implemented by voting (usually local, and even those can be ignored by the higher ups), some are voted in by the representatives who are voted for, but they are then free to "vote their conscience" (assuming they have one), and others can be put in place by non elected/appointed positions such as the head of a department (which is where Cornwall falls) or a judge (some judges are elected, others are appointed).I don t know wath kind of government is in place in HH world but i suspect some kind of democracy and for doing the right thing you need to have the power and the consesus to do so or someone more complaint to the idea of its peolpe can step in your shoes.
He is not actively try to put fuel on the fire of the slavery but instead subtract it, is the sistem of retrograde belief of the people of his nation to blame for it, blame him its plain stupid expecially because its one of the most influent people of his time and seems openly to consider the MC take on things.
A judge or appointed department head can make huge changes to the laws we have or how they are interpreted, far more than many elected politicians.