@gum_rummy The ideal purpose of the nobility is to act as managers of large swaths of land and care for their people while also being a symbol of authority and wealth for the nation. The reason why nobility has often been made the bad guys, however, is due to the fact that nobles are humans too. As such, if they aren't raised properly they'll can become scumbags that take advantage of everyone around them and become so self centered that they'll run their people into the ground just so they can live as frivolously as possible. That, or they can be so stupid and inept that they can't properly manage and care for their land and people. Unfortunately, there have been so many cases of this ineptitude and self centered attitude throughout history that a lot of people have a negative view on the idea of the noble class.
Essentially, the nobles are landlords, business owners, celebrities, and (sometimes) high ranking military personnel all in one package(among other responsibilities), and they pass on their legacy to their kin rather than some person who isn't blood-related despite how competent they may be. If the nobles are inept or are hated by their "employees" and "tenants" then it's far more severe due to the fact that those employees can't just quit like it's nothing and those tenants can't just find a new place so easily, so riots and civil wars tended to be the usual outcome. Also, there is a significant difference in mentality regarding noble-commoner relationships vs genuine employer-employee or landlord-tenant relationships that we have in non-monarchy nations today. Nobles, and especially the royal family, tended to be idolized and elevated on a pedestal as the pinnacle of wealth and prosperity, which is why there are so many romance stories that involve princes and princesses when it comes to medieval settings. Of course, there was just as many hateful stories making the nobility out to be evil as there were stories where they were good, so it just depends on the circumstances.
Simply put, nobility doesn't necessarily equate to evil, but it's understandable to be wary or unfamiliar with the idea that the nobility can at least be decent people, if not out right the "good guys." The main character from "Koushaku Reijou no Tashinami" is a great example of the ideal noble, where they not only maintain but also improve the lives of their people and the prosperity of their land, actually caring about the people under their rule and wanting to build proper relationships with people instead of trying to backstab everyone for their own benefit. Not only that, but whether it be through their actions or words, they end up helping those around them become better people. Of course, the main character who is said ideal noble was reincarnated, so their personal beliefs and work ethic was already great from the get-go due to growing up as a good person in their previous life and being able to keep their memories and personality. As such, they're kind of cheating in regards of how they were raised and what kind of person they ended up as.
Nobles are human, and humans have been and likely always will be flawed. Whether they be royalty or commoners, everyone is capable of being either a scumbag or a saint. We humans just have a tendency to focus more on the negative rather than the positive. Because collectively we're all idiots.
